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Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 11 (from laksa027)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa011.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://math.asu.edu/resources/computer-resources/gnu-screen\')), getAhrefsUnparsedNoserviceFromURL(\'https://math.asu.edu/resources/computer-resources/gnu-screen\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen","crawl_time":1773096356,"first_indexed_time":1591855401,"http_code":200,"src_unparsed":"edu,asu!math,\/resources\/computer-resources\/gnu-screen s443","src_root_hash":"7487819192703931211","history_drop_reason":null,"meta_title":"Screen - Take your terminal session with you! | School of Mathematical and Statistical Sciences","meta_descriptions":["Screen is a full-screen window manager that multiplexes a physic"],"attrs_boilerpipe_text":"Screen is a full-screen window manager that multiplexes a physical terminal between several processes (typically interactive shells). In other words You can run multiple applications in a terminal session that allows you to 'detach'(disconnect) the session by running the applications in the background and 'attach'(reconnect to) the same session later.\nImagine these scenarios:\nCase 1:\n1. You scheduled a long job from the terminal in your Office desktop.\n2. You are in your colleagues office\/ home\/ attending a conference on east coast. Want to check the status of this job?\nCase 2:\n1. You have submitted the job from your laptop.\n2. But now you cannot shutdown your laptop because the job will get killed.\nCase 3:\n1. You submitted the job from a machine .\n2. The network for that machine goes down for 2 minutes. But now, your job is also killed!!\nScreen is a program that comes to your rescue in these scenarios and more\nWith screen you can...\n1. Close and open the terminal's session from any computer\n2. Share the session with colleagues\n3. Stay immune to network downtime and laptop battery draining out\nUsing Screen\nTo start a new screen, simply execute the following command\n$ screen\nYou'll see a message telling you the version of screen you're using and a bit of license information. Just hit space or Enter to get the shell prompt again. Now you are running inside screen. We can now test that its possible to disconnect and reconnect this screen session by running a simple command:\n$ ls\nand you should get a normal directory listing. Now press ^a-d (Ctrl-a and then 'd') and you'll exit the screen session and see a small [detached] message displayed to tell you this. We can see that screen is still running by using the list command\ntpradeep@helios:~$ screen -list\nThere is a screen on:\n        4533.pts-0.helios       (08\/10\/2009 04:36:10 AM)        (Detached)\n1 Socket in \/var\/run\/screen\/S-tpradeep.\ntpradeep@helios:~$ \nThis shows me that there is one session currently running, and that 4533 is its process ID. we can now retrieve it by typing:\n$ screen -r\nIf there were several screen sessions running then you would have to specify which one you want to retrieve, and you do this by specifying  the process ID. For example 'screen -r 4533'.\nTo end a session, simply exit the last running application (this may be a shell) and you'll get a message like [screen is terminating] to let you know what's going on.\nYou can also specify a meaningful name while creating a new session.This name will identify the  session for  \"screen  -list\"  and  \"screen -r\" actions. It substitutes the default [tty.host] suffix.\n$ screen -S matlab_dartel\nyou will start a screen session called 'matlab_dartel'.\nstart matlab by typing 'matlab' at the command prompt(it will open in nodisplay mode by default), do a small task.\ntpradeep@helios:~$ matlab\nWarning: No display specified. You will not be able to display graphics on the screen.\n < M A T L A B (R) >\nCopyright 1984-2009 The MathWorks, Inc.\n Version 7.8.0.347 (R2009a) 32-bit (glnx86)\n February 12, 2009\nTo get started, type one of these: helpwin, helpdesk, or demo.\nFor product information, visit\nwww.mathworks.com\n.\n>> eye(2,2)\nans =\n     1     0\n     0     1\n>>\nDetach the session by pressing ^a-d. Check the status  of  your  sessions by means of \"screen -list\".\ntpradeep@helios:~$ screen -list\nThere are screens on:\n        5260.matlab_dartel      (08\/10\/2009 04:52:16 AM)        (Detached)\n        4533.pts-0.helios       (08\/10\/2009 04:36:10 AM)        (Detached)\n2 Sockets in \/var\/run\/screen\/S-tpradeep.\ntpradeep@helios:~$\nReattach the matlab session by typing 'screen -r matlab_dartel'. You will get back to the same matlab session you started before.\nNote:The session has to be detached before you try to attach or alternatively you can do both the things at the same time by typing 'screen -D -R matlab_dartel'\n-D -R  options mean: If a session is running, then reattach. If necessary detach  and  logout  remotely first.   If  it  was not running create it and notify the user.\nMultiple tabs\nYou can have multiple tabs inside your screen session\nLike Firefox is one process but multipe websites can be opened in each tab\nInside a screen session, you can have multiple tabs. ^a-c creates a new console inside the session, you can switch between tabs using ^a-\"nr of the tab\" E.g ^a0 takes u the first tab, ~a1 takes u to next tab etc...\nKey Bindings\nHere is a default list of commands that can be used inside screen\nCtrl-a c\nCreate new window\nCtrl-a k\nKill the current window\nCtrl-a w\nList all windows (the current window is marked with \"*\")\nCtrl-a 0-9\nGo to a window numbered 0-9\nCtrl-a n\nGo to the next window\nCtrl-a Ctrl-a\nToggle between the current and previous window\nCtrl-a [\nStart copy mode\nCtrl-a ]\nPaste copied text\nCtrl-a ?\nHelp (display a list of commands)\nCtrl-a Ctrl-\\\nQuit screen\nCtrl-a D (Shift-d)\nPower detach and logout\nCtrl-a d\nDetach but keep shell window open\nSharing Screen\nYou can connect to a screen session multiple times. This allows you to use the same screen session on multiple terminals (potentially in differing locations). Connect to one screen session as standard, and then use screen -x to connect a second terminal to the same session. You can then see the same output on both terminals.\nNote: You need to use the same username for both screen sessions for this to work.\nReferences:\nhttp:\/\/www.ibm.com\/developerworks\/aix\/library\/au-gnu_screen\/index.html","attrs_markdown":"[![Arizona State University](https:\/\/math.asu.edu\/profiles\/openclas\/modules\/asu\/asu_brand\/node_modules\/@asu\/component-header\/dist\/assets\/img\/arizona-state-university-logo-vertical.png)![Arizona State University](https:\/\/math.asu.edu\/profiles\/openclas\/modules\/asu\/asu_brand\/node_modules\/@asu\/component-header\/dist\/assets\/img\/arizona-state-university-logo.png)](https:\/\/www.asu.edu\/)\n\n[School of Mathematical and Statistical Sciences](https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen \"School of Mathematical and Statistical Sciences home page\")\n\n1. [Home](https:\/\/math.asu.edu\/)\n2. [Resources](https:\/\/math.asu.edu\/resources)\n\n## [Resources](https:\/\/math.asu.edu\/resources)\nSelect Section\n\n[Math Courses](https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen#cardBodymath-courses)\n\n[MAT 114: College Mathematics](https:\/\/math.asu.edu\/mat114) [MAT 117: College Algebra](https:\/\/math.asu.edu\/mat117) [MAT 119: Finite Mathematics](https:\/\/math.asu.edu\/mat119) [MAT 170: Precalculus](https:\/\/math.asu.edu\/mat170) [MAT 171: Precalculus: Science. Technology, Engineering and Mathematics (STEM)](https:\/\/math.asu.edu\/mat171) [MAT 210: Brief Calculus](https:\/\/math.asu.edu\/mat210) [MAT 211: Mathematics for Business Analysis](https:\/\/math.asu.edu\/mat211) [MAT 242 - Elementary Linear Algebra](https:\/\/math.asu.edu\/mat242) [MAT 243: Discrete Mathematical Structures](https:\/\/math.asu.edu\/mat243) [MAT 251: Calculus for Life Sciences](https:\/\/math.asu.edu\/mat251) [MAT 265: Calculus for Engineers I](https:\/\/math.asu.edu\/mat265) [MAT 266: Calculus for Engineers II](https:\/\/math.asu.edu\/mat266) [MAT 267: Calculus for Engineers III](https:\/\/math.asu.edu\/mat267) [MAT 270: Calculus with Analytic Geometry I](https:\/\/math.asu.edu\/mat270) [MAT 271: Calculus with Analytic Geometry II](https:\/\/math.asu.edu\/mat271) [MAT 272: Calculus with Analytic Geometry III](https:\/\/math.asu.edu\/mat272) [MAT 275: Modern Differential Equations](https:\/\/math.asu.edu\/mat275) [MTE 280 - Numbers, Operations and Proportional Reasoning for K-8 Teaching](https:\/\/math.asu.edu\/MTE280) [STP 226: Elements of Statistics](https:\/\/math.asu.edu\/stp226) [STP 231: Statistics for Life Science](https:\/\/math.asu.edu\/stp231) [STP 420: Introductory Applied Statistics](https:\/\/math.asu.edu\/stp420) [DAT 250: Data Science and Society](https:\/\/math.asu.edu\/DAT250) [DAT 301: Exploring Data in R and Python](https:\/\/math.asu.edu\/dat301)\n\n[Special Course Offerings](https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen#cardBodyspecial-course-offerings)\n\n[Previous Course Announcements](https:\/\/math.asu.edu\/courses\/courses-somss\/previous)\n\n[Math Tutoring Center](https:\/\/math.asu.edu\/resources\/math-tutoring-center)\n\n[Math Community Center](https:\/\/math.asu.edu\/resources\/math-community-center)\n\n[Other Tutoring Options](https:\/\/math.asu.edu\/tutoring)\n\n[Computing Resources](https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen#cardBodycomputing-resources)\n\n[Common Linux Commands](https:\/\/math.asu.edu\/resources\/computer-resources\/common-linux-commands) [Configuring Outlook 365](https:\/\/math.asu.edu\/resources\/computing-resources\/O365) [How to Create Your Own Web Page Using SoMSS Template](https:\/\/math.asu.edu\/resources\/computer-resources\/how-create-your-own-web-page-using-somss-template) [How to install LaTeX on Macintosh\/Windows platforms](https:\/\/math.asu.edu\/resources\/computer-resources\/how-install-latex-macintoshwindows-platforms) [How to install SSL VPN on Windows\/Mac](https:\/\/math.asu.edu\/resources\/computer-resources\/how-install-sslvpn-windowsmac) [How to install TexLive in Windows](https:\/\/math.asu.edu\/resources\/computer-resources\/texlive-windows) [How to secure your home page](https:\/\/math.asu.edu\/resources\/computer-resources\/how-secure-your-home-page) [How to use MobaXterm from windows to a linux server](https:\/\/math.asu.edu\/resources\/computing-resources\/mobaxterm-windows) [How to use the new page header?](https:\/\/math.asu.edu\/resources\/computer-resources\/how-use-new-page-header) [Screen - Take your terminal session with you\\!](https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen) [Servers](https:\/\/math.asu.edu\/resources\/computer-resources\/servers) [SoMSS Presentation Template](https:\/\/math.asu.edu\/resources\/computer-resources\/asu-school-mathematical-and-statistical-sciences-presentation-template) [TI 83\/84 Graphing Calculator Workshop](https:\/\/math.asu.edu\/computing-resources\/graphing-calculator-workshop) [What is WeBWork?](https:\/\/math.asu.edu\/computing-resources\/webwork)\n\n[Office hours](https:\/\/math.asu.edu\/resources\/office-hours)\n\n[Policy on Discrimination, Harassment, and Retaliation](https:\/\/math.asu.edu\/resources\/policy-discrimination-harassment-retaliation)\n\n# Screen - Take your terminal session with you\\!\nScreen is a full-screen window manager that multiplexes a physical terminal between several processes (typically interactive shells). In other words You can run multiple applications in a terminal session that allows you to 'detach'(disconnect) the session by running the applications in the background and 'attach'(reconnect to) the same session later.\n\n### Imagine these scenarios:\n**Case 1:**  \n 1. You scheduled a long job from the terminal in your Office desktop.  \n 2. You are in your colleagues office\/ home\/ attending a conference on east coast. Want to check the status of this job?\n\n**Case 2:**  \n 1. You have submitted the job from your laptop.  \n 2. But now you cannot shutdown your laptop because the job will get killed.\n\n**Case 3:**  \n 1. You submitted the job from a machine .  \n 2. The network for that machine goes down for 2 minutes. But now, your job is also killed!\\!\n\nScreen is a program that comes to your rescue in these scenarios and more\n\n### With screen you can...\n1\\. Close and open the terminal's session from any computer  \n 2. Share the session with colleagues  \n 3. Stay immune to network downtime and laptop battery draining out\n\n### Using Screen\nTo start a new screen, simply execute the following command\n\n*\\$ screen*\n\nYou'll see a message telling you the version of screen you're using and a bit of license information. Just hit space or Enter to get the shell prompt again. Now you are running inside screen. We can now test that its possible to disconnect and reconnect this screen session by running a simple command:\n\n*\\$ ls*\n\nand you should get a normal directory listing. Now press ^a-d (Ctrl-a and then 'd') and you'll exit the screen session and see a small \\[detached\\] message displayed to tell you this. We can see that screen is still running by using the list command\n\n*tpradeep@helios:~\\$ screen -list*  \n *There is a screen on:*  \n  *4533\\.pts-0.helios (08\/10\/2009 04:36:10 AM) (Detached)*  \n *1 Socket in \/var\/run\/screen\/S-tpradeep.*\n\n*tpradeep@helios:~\\$*\n\nThis shows me that there is one session currently running, and that 4533 is its process ID. we can now retrieve it by typing:\n\n*\\$ screen -r*\n\nIf there were several screen sessions running then you would have to specify which one you want to retrieve, and you do this by specifying the process ID. For example 'screen -r 4533'.\n\nTo end a session, simply exit the last running application (this may be a shell) and you'll get a message like \\[screen is terminating\\] to let you know what's going on.\n\nYou can also specify a meaningful name while creating a new session.This name will identify the session for \"screen -list\" and \"screen -r\" actions. It substitutes the default \\[tty.host\\] suffix.\n\n*\\$ screen -S matlab\\_dartel*\n\nyou will start a screen session called 'matlab\\_dartel'.  \n start matlab by typing 'matlab' at the command prompt(it will open in nodisplay mode by default), do a small task.\n\n*tpradeep@helios:~\\$ matlab*  \n *Warning: No display specified. You will not be able to display graphics on the screen.*\n\n*\\< M A T L A B (R) \\>*  \n *Copyright 1984-2009 The MathWorks, Inc.*  \n  *Version 7.8.0.347 (R2009a) 32-bit (glnx86)*  \n  *February 12, 2009*\n\n*To get started, type one of these: helpwin, helpdesk, or demo.*  \n *For product information, visit [www.mathworks.com](http:\/\/www.mathworks.com\/ \"www.mathworks.com\").*\n\n*\\>\\> eye(2,2)*\n\n*ans =*\n\n*1 0*  \n  *0 1*\n\n*\\>\\>*\n\nDetach the session by pressing ^a-d. Check the status of your sessions by means of \"screen -list\".\n\n*tpradeep@helios:~\\$ screen -list*  \n *There are screens on:*  \n  *5260\\.matlab\\_dartel (08\/10\/2009 04:52:16 AM) (Detached)*  \n  *4533\\.pts-0.helios (08\/10\/2009 04:36:10 AM) (Detached)*  \n *2 Sockets in \/var\/run\/screen\/S-tpradeep.*\n\n*tpradeep@helios:~\\$*\n\nReattach the matlab session by typing 'screen -r matlab\\_dartel'. You will get back to the same matlab session you started before.\n\nNote:The session has to be detached before you try to attach or alternatively you can do both the things at the same time by typing 'screen -D -R matlab\\_dartel'\n\n\\-D -R options mean: If a session is running, then reattach. If necessary detach and logout remotely first. If it was not running create it and notify the user.\n\n### Multiple tabs\nYou can have multiple tabs inside your screen session\n\nLike Firefox is one process but multipe websites can be opened in each tab\n\nInside a screen session, you can have multiple tabs. ^a-c creates a new console inside the session, you can switch between tabs using ^a-\"nr of the tab\" E.g ^a0 takes u the first tab, ~a1 takes u to next tab etc...\n\n### Key Bindings\nHere is a default list of commands that can be used inside screen\n\n|   |   |\n|---|---|\n| Ctrl-a c | Create new window |\n| Ctrl-a k | Kill the current window |\n| Ctrl-a w | List all windows (the current window is marked with \"\\*\") |\n| Ctrl-a 0-9 | Go to a window numbered 0-9 |\n| Ctrl-a n | Go to the next window |\n| Ctrl-a Ctrl-a | Toggle between the current and previous window |\n| Ctrl-a \\[ | Start copy mode |\n| Ctrl-a \\] | Paste copied text |\n| Ctrl-a ? | Help (display a list of commands) |\n| Ctrl-a Ctrl-\\\\ | Quit screen |\n| Ctrl-a D (Shift-d) | Power detach and logout |\n| Ctrl-a d | Detach but keep shell window open |\n### Sharing Screen\nYou can connect to a screen session multiple times. This allows you to use the same screen session on multiple terminals (potentially in differing locations). Connect to one screen session as standard, and then use screen -x to connect a second terminal to the same session. You can then see the same output on both terminals.  \n Note: You need to use the same username for both screen sessions for this to work.\n\n*References:*  \n <http:\/\/www.ibm.com\/developerworks\/aix\/library\/au-gnu_screen\/index.html>\n\n![](https:\/\/math.asu.edu\/sites\/g\/files\/litvpz216\/files\/asu_mathstaticscience_horiz_rgb_white_150ppi_292x58.png)\n\n[Facebook](https:\/\/www.facebook.com\/asu.math\/ \"Facebook\") [X\/Twitter](https:\/\/twitter.com\/asumathematics \"X\/Twitter\") [LinkedIn](https:\/\/www.linkedin.com\/in\/somss \"LinkedIn\")\n\nA unit of  \n[The College of Liberal Arts and Sciences](https:\/\/thecollege.asu.edu\/)\n\n[Support ASU](https:\/\/www.asufoundation.org\/colleges-and-programs\/schools-and-colleges\/the-college-of-liberal-arts-and-sciences\/mathematics-gifts-account-CA107121.html)\n\n[Academics](https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen#footer-link-col)\n\n[Undergraduate degrees](https:\/\/math.asu.edu\/degrees\/undergrad \"Undergraduate degrees\") [Minors and certificates](https:\/\/math.asu.edu\/degrees\/undergrad\/minor-certs \"Minors and certificates\") [Graduate degrees](https:\/\/math.asu.edu\/degrees\/grad \"Graduate degrees\") [Graduate certificates](https:\/\/math.asu.edu\/degree\/graduate\/statistics-and-data-science-graduate-certificate-certificate-cert \"Graduate certificates\")\n\n[Connect](https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen#footer-link-col--2)\n\n[Academic advising](https:\/\/math.asu.edu\/student-life\/undergraduate-experience\/academic-advising \"Academic advising\") [Community outreach](https:\/\/math.asu.edu\/about\/community-outreach \"Community outreach\") [Employment](https:\/\/math.asu.edu\/careers \"Employment\") [Giving](https:\/\/math.asu.edu\/about\/giving \"Giving\") [People](https:\/\/math.asu.edu\/people \"People\") [Contact](https:\/\/math.asu.edu\/about\/contact-us \"Contact\")\n\n[Current graduate students](https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen#footer-link-col--3)\n\n[SoMSS Handbooks for Graduate Students in PhD and Master's Programs](https:\/\/math.asu.edu\/grad-handbooks-somss \"SoMSS Handbooks for Graduate Students in PhD and Master's Programs\") [Archive of SoMSS Handbooks for Graduate Students](https:\/\/math.asu.edu\/grad-handbooks-somss-archive \"Archive of SoMSS Handbooks for Graduate Students\") [Graduate College TA\/RA Handbook](https:\/\/graduate.asu.edu\/ta-ra-handbook \"Graduate College TA\/RA Handbook\") [Student club resources](https:\/\/math.asu.edu\/student-club-resources \"Student club resources\")\n\n[Intranet](https:\/\/math.asu.edu\/resources\/computer-resources\/gnu-screen#footer-link-col--4)\n\n[ASU Outlook Web Access](https:\/\/outlook.com\/asurite.asu.edu \"ASU Outlook Web Access\") [Novel Coronavirus Online Teaching Resources](https:\/\/math.asu.edu\/coronavirus-online-teaching-resources \"Novel Coronavirus Online Teaching Resources\")\n\n[![Repeatedly ranked \\#1 for innovation, sustainability, and global impact](https:\/\/math.asu.edu\/profiles\/openclas\/modules\/custom\/clas_footer\/images\/footer-rank.png)](https:\/\/www.asu.edu\/rankings)\n\n[Maps and Locations](https:\/\/www.asu.edu\/about\/locations-maps) [Jobs](https:\/\/cfo.asu.edu\/applicant) [Directory](https:\/\/search.asu.edu\/?search-tabs=web_dir_faculty_staff) [Contact ASU](https:\/\/www.asu.edu\/about\/contact) [My ASU](https:\/\/my.asu.edu\/)\n\n[Copyright and Trademark](https:\/\/www.asu.edu\/about\/copyright-trademark) [Accessibility](https:\/\/accessibility.asu.edu\/report) [Privacy](https:\/\/www.asu.edu\/about\/privacy) [Terms of Use](https:\/\/www.asu.edu\/about\/terms-of-use) [Emergency](https:\/\/www.asu.edu\/emergency)","attrs_readable_markdown":"Screen is a full-screen window manager that multiplexes a physical terminal between several processes (typically interactive shells). In other words You can run multiple applications in a terminal session that allows you to 'detach'(disconnect) the session by running the applications in the background and 'attach'(reconnect to) the same session later.\n\n### Imagine these scenarios:\n**Case 1:**  \n 1. You scheduled a long job from the terminal in your Office desktop.  \n 2. You are in your colleagues office\/ home\/ attending a conference on east coast. Want to check the status of this job?\n\n**Case 2:**  \n 1. You have submitted the job from your laptop.  \n 2. But now you cannot shutdown your laptop because the job will get killed.\n\n**Case 3:**  \n 1. You submitted the job from a machine .  \n 2. The network for that machine goes down for 2 minutes. But now, your job is also killed!\\!\n\nScreen is a program that comes to your rescue in these scenarios and more\n\n### With screen you can...\n1\\. Close and open the terminal's session from any computer  \n 2. Share the session with colleagues  \n 3. Stay immune to network downtime and laptop battery draining out\n\n### Using Screen\nTo start a new screen, simply execute the following command\n\n*\\$ screen*\n\nYou'll see a message telling you the version of screen you're using and a bit of license information. Just hit space or Enter to get the shell prompt again. Now you are running inside screen. We can now test that its possible to disconnect and reconnect this screen session by running a simple command:\n\n*\\$ ls*\n\nand you should get a normal directory listing. Now press ^a-d (Ctrl-a and then 'd') and you'll exit the screen session and see a small \\[detached\\] message displayed to tell you this. We can see that screen is still running by using the list command\n\n*tpradeep@helios:~\\$ screen -list*  \n *There is a screen on:*  \n  *4533\\.pts-0.helios (08\/10\/2009 04:36:10 AM) (Detached)*  \n *1 Socket in \/var\/run\/screen\/S-tpradeep.*\n\n*tpradeep@helios:~\\$*\n\nThis shows me that there is one session currently running, and that 4533 is its process ID. we can now retrieve it by typing:\n\n*\\$ screen -r*\n\nIf there were several screen sessions running then you would have to specify which one you want to retrieve, and you do this by specifying the process ID. For example 'screen -r 4533'.\n\nTo end a session, simply exit the last running application (this may be a shell) and you'll get a message like \\[screen is terminating\\] to let you know what's going on.\n\nYou can also specify a meaningful name while creating a new session.This name will identify the session for \"screen -list\" and \"screen -r\" actions. It substitutes the default \\[tty.host\\] suffix.\n\n*\\$ screen -S matlab\\_dartel*\n\nyou will start a screen session called 'matlab\\_dartel'.  \n start matlab by typing 'matlab' at the command prompt(it will open in nodisplay mode by default), do a small task.\n\n*tpradeep@helios:~\\$ matlab*  \n *Warning: No display specified. You will not be able to display graphics on the screen.*\n\n*\\< M A T L A B (R) \\>*  \n *Copyright 1984-2009 The MathWorks, Inc.*  \n  *Version 7.8.0.347 (R2009a) 32-bit (glnx86)*  \n  *February 12, 2009*\n\n*To get started, type one of these: helpwin, helpdesk, or demo.*  \n *For product information, visit [www.mathworks.com](http:\/\/www.mathworks.com\/ \"www.mathworks.com\").*\n\n*\\>\\> eye(2,2)*\n\n*ans =*\n\n*1 0*  \n  *0 1*\n\n*\\>\\>*\n\nDetach the session by pressing ^a-d. Check the status of your sessions by means of \"screen -list\".\n\n*tpradeep@helios:~\\$ screen -list*  \n *There are screens on:*  \n  *5260\\.matlab\\_dartel (08\/10\/2009 04:52:16 AM) (Detached)*  \n  *4533\\.pts-0.helios (08\/10\/2009 04:36:10 AM) (Detached)*  \n *2 Sockets in \/var\/run\/screen\/S-tpradeep.*\n\n*tpradeep@helios:~\\$*\n\nReattach the matlab session by typing 'screen -r matlab\\_dartel'. You will get back to the same matlab session you started before.\n\nNote:The session has to be detached before you try to attach or alternatively you can do both the things at the same time by typing 'screen -D -R matlab\\_dartel'\n\n\\-D -R options mean: If a session is running, then reattach. If necessary detach and logout remotely first. If it was not running create it and notify the user.\n\n### Multiple tabs\nYou can have multiple tabs inside your screen session\n\nLike Firefox is one process but multipe websites can be opened in each tab\n\nInside a screen session, you can have multiple tabs. ^a-c creates a new console inside the session, you can switch between tabs using ^a-\"nr of the tab\" E.g ^a0 takes u the first tab, ~a1 takes u to next tab etc...\n\n### Key Bindings\nHere is a default list of commands that can be used inside screen\n\n|   |   |\n|---|---|\n| Ctrl-a c | Create new window |\n| Ctrl-a k | Kill the current window |\n| Ctrl-a w | List all windows (the current window is marked with \"\\*\") |\n| Ctrl-a 0-9 | Go to a window numbered 0-9 |\n| Ctrl-a n | Go to the next window |\n| Ctrl-a Ctrl-a | Toggle between the current and previous window |\n| Ctrl-a \\[ | Start copy mode |\n| Ctrl-a \\] | Paste copied text |\n| Ctrl-a ? | Help (display a list of commands) |\n| Ctrl-a Ctrl-\\\\ | Quit screen |\n| Ctrl-a D (Shift-d) | Power detach and logout |\n| Ctrl-a d | Detach but keep shell window open |\n### Sharing Screen\nYou can connect to a screen session multiple times. This allows you to use the same screen session on multiple terminals (potentially in differing locations). Connect to one screen session as standard, and then use screen -x to connect a second terminal to the same session. You can then see the same output on both terminals.  \n Note: You need to use the same username for both screen sessions for this to work.\n\n*References:*  \n <http:\/\/www.ibm.com\/developerworks\/aix\/library\/au-gnu_screen\/index.html>","meta_canonical":null}

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Meta Title	Screen - Take your terminal session with you! \| School of Mathematical and Statistical Sciences
Meta Description	Screen is a full-screen window manager that multiplexes a physic
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Boilerpipe Text	Screen is a full-screen window manager that multiplexes a physical terminal between several processes (typically interactive shells). In other words You can run multiple applications in a terminal session that allows you to 'detach'(disconnect) the session by running the applications in the background and 'attach'(reconnect to) the same session later. Imagine these scenarios: Case 1: 1. You scheduled a long job from the terminal in your Office desktop. 2. You are in your colleagues office/ home/ attending a conference on east coast. Want to check the status of this job? Case 2: 1. You have submitted the job from your laptop. 2. But now you cannot shutdown your laptop because the job will get killed. Case 3: 1. You submitted the job from a machine . 2. The network for that machine goes down for 2 minutes. But now, your job is also killed!! Screen is a program that comes to your rescue in these scenarios and more With screen you can... 1. Close and open the terminal's session from any computer 2. Share the session with colleagues 3. Stay immune to network downtime and laptop battery draining out Using Screen To start a new screen, simply execute the following command $ screen You'll see a message telling you the version of screen you're using and a bit of license information. Just hit space or Enter to get the shell prompt again. Now you are running inside screen. We can now test that its possible to disconnect and reconnect this screen session by running a simple command: $ ls and you should get a normal directory listing. Now press ^a-d (Ctrl-a and then 'd') and you'll exit the screen session and see a small [detached] message displayed to tell you this. We can see that screen is still running by using the list command tpradeep@helios:~$ screen -list There is a screen on: 4533.pts-0.helios (08/10/2009 04:36:10 AM) (Detached) 1 Socket in /var/run/screen/S-tpradeep. tpradeep@helios:~$ This shows me that there is one session currently running, and that 4533 is its process ID. we can now retrieve it by typing: $ screen -r If there were several screen sessions running then you would have to specify which one you want to retrieve, and you do this by specifying the process ID. For example 'screen -r 4533'. To end a session, simply exit the last running application (this may be a shell) and you'll get a message like [screen is terminating] to let you know what's going on. You can also specify a meaningful name while creating a new session.This name will identify the session for "screen -list" and "screen -r" actions. It substitutes the default [tty.host] suffix. $ screen -S matlab_dartel you will start a screen session called 'matlab_dartel'. start matlab by typing 'matlab' at the command prompt(it will open in nodisplay mode by default), do a small task. tpradeep@helios:~$ matlab Warning: No display specified. You will not be able to display graphics on the screen. < M A T L A B (R) > Copyright 1984-2009 The MathWorks, Inc. Version 7.8.0.347 (R2009a) 32-bit (glnx86) February 12, 2009 To get started, type one of these: helpwin, helpdesk, or demo. For product information, visit www.mathworks.com . >> eye(2,2) ans = 1 0 0 1 >> Detach the session by pressing ^a-d. Check the status of your sessions by means of "screen -list". tpradeep@helios:~$ screen -list There are screens on: 5260.matlab_dartel (08/10/2009 04:52:16 AM) (Detached) 4533.pts-0.helios (08/10/2009 04:36:10 AM) (Detached) 2 Sockets in /var/run/screen/S-tpradeep. tpradeep@helios:~$ Reattach the matlab session by typing 'screen -r matlab_dartel'. You will get back to the same matlab session you started before. Note:The session has to be detached before you try to attach or alternatively you can do both the things at the same time by typing 'screen -D -R matlab_dartel' -D -R options mean: If a session is running, then reattach. If necessary detach and logout remotely first. If it was not running create it and notify the user. Multiple tabs You can have multiple tabs inside your screen session Like Firefox is one process but multipe websites can be opened in each tab Inside a screen session, you can have multiple tabs. ^a-c creates a new console inside the session, you can switch between tabs using ^a-"nr of the tab" E.g ^a0 takes u the first tab, ~a1 takes u to next tab etc... Key Bindings Here is a default list of commands that can be used inside screen Ctrl-a c Create new window Ctrl-a k Kill the current window Ctrl-a w List all windows (the current window is marked with "*") Ctrl-a 0-9 Go to a window numbered 0-9 Ctrl-a n Go to the next window Ctrl-a Ctrl-a Toggle between the current and previous window Ctrl-a [ Start copy mode Ctrl-a ] Paste copied text Ctrl-a ? Help (display a list of commands) Ctrl-a Ctrl-\ Quit screen Ctrl-a D (Shift-d) Power detach and logout Ctrl-a d Detach but keep shell window open Sharing Screen You can connect to a screen session multiple times. This allows you to use the same screen session on multiple terminals (potentially in differing locations). Connect to one screen session as standard, and then use screen -x to connect a second terminal to the same session. You can then see the same output on both terminals. Note: You need to use the same username for both screen sessions for this to work. References: http://www.ibm.com/developerworks/aix/library/au-gnu_screen/index.html
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Screen is a full-screen window manager that multiplexes a physical terminal between several processes (typically interactive shells). In other words You can run multiple applications in a terminal session that allows you to 'detach'(disconnect) the session by running the applications in the background and 'attach'(reconnect to) the same session later. ### Imagine these scenarios: Case 1: 1. You scheduled a long job from the terminal in your Office desktop. 2. You are in your colleagues office/ home/ attending a conference on east coast. Want to check the status of this job? Case 2: 1. You have submitted the job from your laptop. 2. But now you cannot shutdown your laptop because the job will get killed. Case 3: 1. You submitted the job from a machine . 2. The network for that machine goes down for 2 minutes. But now, your job is also killed!\! Screen is a program that comes to your rescue in these scenarios and more ### With screen you can... 1\. Close and open the terminal's session from any computer 2. Share the session with colleagues 3. Stay immune to network downtime and laptop battery draining out ### Using Screen To start a new screen, simply execute the following command \$ screen You'll see a message telling you the version of screen you're using and a bit of license information. Just hit space or Enter to get the shell prompt again. Now you are running inside screen. We can now test that its possible to disconnect and reconnect this screen session by running a simple command: \$ ls and you should get a normal directory listing. Now press ^a-d (Ctrl-a and then 'd') and you'll exit the screen session and see a small \[detached\] message displayed to tell you this. We can see that screen is still running by using the list command tpradeep@helios:~\$ screen -list There is a screen on: 4533\.pts-0.helios (08/10/2009 04:36:10 AM) (Detached) 1 Socket in /var/run/screen/S-tpradeep. tpradeep@helios:~\$ This shows me that there is one session currently running, and that 4533 is its process ID. we can now retrieve it by typing: \$ screen -r If there were several screen sessions running then you would have to specify which one you want to retrieve, and you do this by specifying the process ID. For example 'screen -r 4533'. To end a session, simply exit the last running application (this may be a shell) and you'll get a message like \[screen is terminating\] to let you know what's going on. You can also specify a meaningful name while creating a new session.This name will identify the session for "screen -list" and "screen -r" actions. It substitutes the default \[tty.host\] suffix. \$ screen -S matlab\_dartel you will start a screen session called 'matlab\_dartel'. start matlab by typing 'matlab' at the command prompt(it will open in nodisplay mode by default), do a small task. tpradeep@helios:~\$ matlab Warning: No display specified. You will not be able to display graphics on the screen. \< M A T L A B (R) \> Copyright 1984-2009 The MathWorks, Inc. Version 7.8.0.347 (R2009a) 32-bit (glnx86) February 12, 2009 To get started, type one of these: helpwin, helpdesk, or demo. For product information, visit [www.mathworks.com](http://www.mathworks.com/ "www.mathworks.com"). \>\> eye(2,2) ans = 1 0 0 1 \>\> Detach the session by pressing ^a-d. Check the status of your sessions by means of "screen -list". tpradeep@helios:~\$ screen -list There are screens on: 5260\.matlab\_dartel (08/10/2009 04:52:16 AM) (Detached) 4533\.pts-0.helios (08/10/2009 04:36:10 AM) (Detached) 2 Sockets in /var/run/screen/S-tpradeep. tpradeep@helios:~\$ Reattach the matlab session by typing 'screen -r matlab\_dartel'. You will get back to the same matlab session you started before. Note:The session has to be detached before you try to attach or alternatively you can do both the things at the same time by typing 'screen -D -R matlab\_dartel' \-D -R options mean: If a session is running, then reattach. If necessary detach and logout remotely first. If it was not running create it and notify the user. ### Multiple tabs You can have multiple tabs inside your screen session Like Firefox is one process but multipe websites can be opened in each tab Inside a screen session, you can have multiple tabs. ^a-c creates a new console inside the session, you can switch between tabs using ^a-"nr of the tab" E.g ^a0 takes u the first tab, ~a1 takes u to next tab etc... ### Key Bindings Here is a default list of commands that can be used inside screen \| \| \| \|---\|---\| \| Ctrl-a c \| Create new window \| \| Ctrl-a k \| Kill the current window \| \| Ctrl-a w \| List all windows (the current window is marked with "\") \| \| Ctrl-a 0-9 \| Go to a window numbered 0-9 \| \| Ctrl-a n \| Go to the next window \| \| Ctrl-a Ctrl-a \| Toggle between the current and previous window \| \| Ctrl-a \[ \| Start copy mode \| \| Ctrl-a \] \| Paste copied text \| \| Ctrl-a ? \| Help (display a list of commands) \| \| Ctrl-a Ctrl-\\ \| Quit screen \| \| Ctrl-a D (Shift-d) \| Power detach and logout \| \| Ctrl-a d \| Detach but keep shell window open \| ### Sharing Screen You can connect to a screen session multiple times. This allows you to use the same screen session on multiple terminals (potentially in differing locations). Connect to one screen session as standard, and then use screen -x to connect a second terminal to the same session. You can then see the same output on both terminals. Note: You need to use the same username for both screen sessions for this to work. 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Readable Markdown	Screen is a full-screen window manager that multiplexes a physical terminal between several processes (typically interactive shells). In other words You can run multiple applications in a terminal session that allows you to 'detach'(disconnect) the session by running the applications in the background and 'attach'(reconnect to) the same session later. ### Imagine these scenarios: Case 1: 1. You scheduled a long job from the terminal in your Office desktop. 2. You are in your colleagues office/ home/ attending a conference on east coast. Want to check the status of this job? Case 2: 1. You have submitted the job from your laptop. 2. But now you cannot shutdown your laptop because the job will get killed. Case 3: 1. You submitted the job from a machine . 2. The network for that machine goes down for 2 minutes. But now, your job is also killed!\! Screen is a program that comes to your rescue in these scenarios and more ### With screen you can... 1\. Close and open the terminal's session from any computer 2. Share the session with colleagues 3. Stay immune to network downtime and laptop battery draining out ### Using Screen To start a new screen, simply execute the following command \$ screen You'll see a message telling you the version of screen you're using and a bit of license information. Just hit space or Enter to get the shell prompt again. Now you are running inside screen. We can now test that its possible to disconnect and reconnect this screen session by running a simple command: \$ ls and you should get a normal directory listing. Now press ^a-d (Ctrl-a and then 'd') and you'll exit the screen session and see a small \[detached\] message displayed to tell you this. We can see that screen is still running by using the list command tpradeep@helios:~\$ screen -list There is a screen on: 4533\.pts-0.helios (08/10/2009 04:36:10 AM) (Detached) 1 Socket in /var/run/screen/S-tpradeep. tpradeep@helios:~\$ This shows me that there is one session currently running, and that 4533 is its process ID. we can now retrieve it by typing: \$ screen -r If there were several screen sessions running then you would have to specify which one you want to retrieve, and you do this by specifying the process ID. For example 'screen -r 4533'. To end a session, simply exit the last running application (this may be a shell) and you'll get a message like \[screen is terminating\] to let you know what's going on. You can also specify a meaningful name while creating a new session.This name will identify the session for "screen -list" and "screen -r" actions. It substitutes the default \[tty.host\] suffix. \$ screen -S matlab\_dartel you will start a screen session called 'matlab\_dartel'. start matlab by typing 'matlab' at the command prompt(it will open in nodisplay mode by default), do a small task. tpradeep@helios:~\$ matlab Warning: No display specified. You will not be able to display graphics on the screen. \< M A T L A B (R) \> Copyright 1984-2009 The MathWorks, Inc. Version 7.8.0.347 (R2009a) 32-bit (glnx86) February 12, 2009 To get started, type one of these: helpwin, helpdesk, or demo. For product information, visit [www.mathworks.com](http://www.mathworks.com/ "www.mathworks.com"). \>\> eye(2,2) ans = 1 0 0 1 \>\> Detach the session by pressing ^a-d. Check the status of your sessions by means of "screen -list". tpradeep@helios:~\$ screen -list There are screens on: 5260\.matlab\_dartel (08/10/2009 04:52:16 AM) (Detached) 4533\.pts-0.helios (08/10/2009 04:36:10 AM) (Detached) 2 Sockets in /var/run/screen/S-tpradeep. tpradeep@helios:~\$ Reattach the matlab session by typing 'screen -r matlab\_dartel'. You will get back to the same matlab session you started before. Note:The session has to be detached before you try to attach or alternatively you can do both the things at the same time by typing 'screen -D -R matlab\_dartel' \-D -R options mean: If a session is running, then reattach. If necessary detach and logout remotely first. If it was not running create it and notify the user. ### Multiple tabs You can have multiple tabs inside your screen session Like Firefox is one process but multipe websites can be opened in each tab Inside a screen session, you can have multiple tabs. ^a-c creates a new console inside the session, you can switch between tabs using ^a-"nr of the tab" E.g ^a0 takes u the first tab, ~a1 takes u to next tab etc... ### Key Bindings Here is a default list of commands that can be used inside screen \| \| \| \|---\|---\| \| Ctrl-a c \| Create new window \| \| Ctrl-a k \| Kill the current window \| \| Ctrl-a w \| List all windows (the current window is marked with "\") \| \| Ctrl-a 0-9 \| Go to a window numbered 0-9 \| \| Ctrl-a n \| Go to the next window \| \| Ctrl-a Ctrl-a \| Toggle between the current and previous window \| \| Ctrl-a \[ \| Start copy mode \| \| Ctrl-a \] \| Paste copied text \| \| Ctrl-a ? \| Help (display a list of commands) \| \| Ctrl-a Ctrl-\\ \| Quit screen \| \| Ctrl-a D (Shift-d) \| Power detach and logout \| \| Ctrl-a d \| Detach but keep shell window open \| ### Sharing Screen You can connect to a screen session multiple times. This allows you to use the same screen session on multiple terminals (potentially in differing locations). Connect to one screen session as standard, and then use screen -x to connect a second terminal to the same session. You can then see the same output on both terminals. Note: You need to use the same username for both screen sessions for this to work. References:* <http://www.ibm.com/developerworks/aix/library/au-gnu_screen/index.html>
Shard	11 (laksa)
Root Hash	7487819192703931211
Unparsed URL	edu,asu!math,/resources/computer-resources/gnu-screen s443