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This question shows research effort; it is useful and clear 153 Save this question. Show activity on this post. I accidentally created over 1000 screens. How do I kill them all with one command? (Or a few) asked Oct 10, 2013 at 21:57 5 This answer is useful 189 Save this answer. Show activity on this post. You can use : pkill screen Or killall screen In OSX the process is called SCREEN in all caps. So, use: pkill SCREEN Or killall SCREEN answered Oct 10, 2013 at 22:03 5 This answer is useful 20 Save this answer. Show activity on this post. If the screens are dead, use: screen -wipe answered Dec 2, 2014 at 2:20 1 This answer is useful 16 Save this answer. Show activity on this post. Have recently begun to familiarize myself with awk I put together this and it served its purpose. I posted it since its quite easy to understand. screen -ls | grep '(Detached)' | awk 'sys {screen -S $1 -X quit}' Where screen -ls lists all current screens. grep 'pattern' filters out all matching rows. We can then get a handle for all detached screens and with awk sys {command} we can copy and paste together a command and execute it with sys , $1 refers to the first argument picked up by awk. Finally we execute the quit command with screen -X quit . answered Oct 25, 2017 at 14:35 1 This answer is useful 7 Save this answer. Show activity on this post. str=$(screen - ls ) array=$( echo $str | tr "." "\n" ) for V in $array do if [ $V -gt 0 ] then screen -S $V -X quit fi done Archemar 32.3k 18 gold badges 75 silver badges 107 bronze badges answered Sep 3, 2015 at 14:39 This answer is useful 5 Save this answer. Show activity on this post. for scr in $(screen - ls | awk '{print $1}' ); do screen -S $scr -X kill ; done Jeff Schaller ♦ 69k 35 gold badges 122 silver badges 268 bronze badges answered Sep 9, 2019 at 10:22 This answer is useful 3 Save this answer. Show activity on this post. I'm a bit puzzled over how you managed to create 1000 "screens". Did you perhaps mean 1000 screen windows (1000 different terminal windows within a single screen session)? If you meant 1000 windows within a single screen session, then a more elegant solution would be to quit screen using the command C-a \ (ctrl-a followed by \). answered Oct 11, 2013 at 0:53 4 This answer is useful 2 Save this answer. Show activity on this post. You can use the screen command itself to list all active screen sessions and then kill them one by one. Here's an example: screen - ls | awk '{print $1}' | xargs -I{} screen -X -S {} quit This will list all active screen sessions using the screen -ls command, extract the session IDs using awk , and then pass each session ID to the screen -X -S command to quit the session. answered Aug 11, 2023 at 3:11 This answer is useful 1 Save this answer. Show activity on this post. The following command will terminate all inactive screens: perl -e 'while (map { kill 9, [split /\./]->[0] } grep { /Detached/ } split /\n/, qx{screen -ls}) { sleep 1 } exec qw(screen -wipe)' Kevdog777 3,274 18 gold badges 45 silver badges 67 bronze badges answered Jun 11, 2019 at 9:04 1 You must log in to answer this question. Start asking to get answers Find the answer to your question by asking. Ask question Explore related questions See similar questions with these tags.
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[Explore Stack Internal](https://stackoverflow.co/internal/?utm_medium=referral&utm_source=unix-community&utm_campaign=side-bar&utm_content=explore-teams-compact-popover) # [How do I kill all screens?](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens) [Ask Question](https://unix.stackexchange.com/questions/ask) Asked 12 years, 5 months ago Modified [2 years, 5 months ago](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens?lastactivity "2023-09-29 06:55:49Z") Viewed 466k times This question shows research effort; it is useful and clear 153 Save this question. Show activity on this post. I accidentally created over 1000 screens. How do I kill them all with one command? (Or a few) - [linux](https://unix.stackexchange.com/questions/tagged/linux "show questions tagged 'linux'") - [bash](https://unix.stackexchange.com/questions/tagged/bash "show questions tagged 'bash'") - [gnu-screen](https://unix.stackexchange.com/questions/tagged/gnu-screen "show questions tagged 'gnu-screen'") - [kill](https://unix.stackexchange.com/questions/tagged/kill "show questions tagged 'kill'") [Share](https://unix.stackexchange.com/q/94527 "Short permalink to this question") Share a link to this question Copy link [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/ "The current license for this post: CC BY-SA 3.0") [Improve this question](https://unix.stackexchange.com/posts/94527/edit) Follow Follow this question to receive notifications asked Oct 10, 2013 at 21:57 [![BrainStone's user avatar](https://www.gravatar.com/avatar/de764cb701641bd5ca3419fda6186edb?s=64&d=identicon&r=PG)](https://unix.stackexchange.com/users/45867/brainstone) [BrainStone](https://unix.stackexchange.com/users/45867/brainstone) 3,8331212 gold badges4242 silver badges5959 bronze badges 5 - 3 run --\> `screen -ls | grep Detached | cut -d. -f1 | awk '{print $1}' | xargs kill` sactiw – [sactiw](https://unix.stackexchange.com/users/124313/sactiw "101 reputation") 2016-11-12 10:26:02 +00:00 [Commented Nov 12, 2016 at 10:26](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment567595_94527) - Good idea @sactiw. I modified it to work with my named sessions, and tweaked the commands a bit for preference, cleaning the sessions out completely in case they are 'stuck' like they were for me, and listing again for the user as a sanity check: `screen -ls | grep "<name>" | cut -d. -f1 | tr --delete "\t" | xargs kill -9; screen -wipe; screen -ls;` Pysis – [Pysis](https://unix.stackexchange.com/users/65319/pysis "147 reputation") 2017-08-09 14:37:00 +00:00 [Commented Aug 9, 2017 at 14:37](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment684696_94527) - 8 How did you accidentally create 1000 screens? duhaime – [duhaime](https://unix.stackexchange.com/users/82667/duhaime "443 reputation") 2018-04-04 00:06:36 +00:00 [Commented Apr 4, 2018 at 0:06](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment786314_94527) - 1 @duhaime asking the real question. ahron – [ahron](https://unix.stackexchange.com/users/123481/ahron "434 reputation") 2022-07-04 18:11:00 +00:00 [Commented Jul 4, 2022 at 18:11](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment1341455_94527) - I was using a loop and running different parameters for a model in each screen. It all happened so fast\! Adam\_G – [Adam\_G](https://unix.stackexchange.com/users/87878/adam-g "433 reputation") 2022-08-17 21:56:21 +00:00 [Commented Aug 17, 2022 at 21:56](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment1352421_94527) [Add a comment](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens "Use comments to ask for more information or suggest improvements. Avoid answering questions in comments.") \| ## 8 Answers 8 Sorted by: [Reset to default](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens?answertab=scoredesc#tab-top) This answer is useful 189 Save this answer. Show activity on this post. You can use : ``` pkill screen ``` Or ``` killall screen ``` *** In OSX the process is called SCREEN in all caps. So, use: ``` pkill SCREEN ``` Or ``` killall SCREEN ``` [Share](https://unix.stackexchange.com/a/94528 "Short permalink to this answer") Share a link to this answer Copy link [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/ "The current license for this post: CC BY-SA 3.0") [Improve this answer](https://unix.stackexchange.com/posts/94528/edit) Follow Follow this answer to receive notifications [edited Sep 7, 2017 at 16:22](https://unix.stackexchange.com/posts/94528/revisions "show all edits to this post") [![Stephen Rauch's user avatar](https://i.sstatic.net/13Fpq.png?s=64)](https://unix.stackexchange.com/users/208146/stephen-rauch) [Stephen Rauch](https://unix.stackexchange.com/users/208146/stephen-rauch) 4,3491515 gold badges2525 silver badges3333 bronze badges answered Oct 10, 2013 at 22:03 [![Rahul Patil's user avatar](https://www.gravatar.com/avatar/21c870b22afca2aafa4dc8dd3f7776a2?s=64&d=identicon&r=PG)](https://unix.stackexchange.com/users/28434/rahul-patil) [Rahul Patil](https://unix.stackexchange.com/users/28434/rahul-patil) 25\.7k2626 gold badges8686 silver badges9696 bronze badges 5 - 2 It's not recommended to use SIGKILL in this case. SIGTERM would be a much better choice. Marco – [Marco](https://unix.stackexchange.com/users/12779/marco "34,298 reputation") 2013-10-10 22:31:27 +00:00 [Commented Oct 10, 2013 at 22:31](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment143600_94528) - Hi, Rahul Patil. why screen is not listed in `Top` user15964 – [user15964](https://unix.stackexchange.com/users/31374/user15964 "753 reputation") 2016-04-30 01:03:08 +00:00 [Commented Apr 30, 2016 at 1:03](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment487037_94528) - What if I don't have permissions? Do I have to manually go into and exit all the screens individually? hipoglucido – [hipoglucido](https://unix.stackexchange.com/users/230998/hipoglucido "101 reputation") 2017-06-21 15:39:10 +00:00 [Commented Jun 21, 2017 at 15:39](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment662380_94528) - 1 In OSX (also potentially in Linux), ongoing processes running inside the screen are "orphaned". f01 – [f01](https://unix.stackexchange.com/users/63301/f01 "266 reputation") 2022-12-06 03:26:14 +00:00 [Commented Dec 6, 2022 at 3:26](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment1379175_94528) - @marco why not? [Also, `pkill` already sends `SIGTERM`, not `SIGKILL`](https://linux.die.net/man/1/pkill). Ditto [for `killall`](https://man7.org/linux/man-pages/man1/killall.1.html). ijoseph – [ijoseph](https://unix.stackexchange.com/users/20482/ijoseph "164 reputation") 2025-08-04 17:54:23 +00:00 [Commented Aug 4, 2025 at 17:54](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment1535699_94528) [Add a comment](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens "Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.") \| This answer is useful 20 Save this answer. Show activity on this post. If the screens are dead, use: ``` screen -wipe ``` [Share](https://unix.stackexchange.com/a/170949 "Short permalink to this answer") Share a link to this answer Copy link [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/ "The current license for this post: CC BY-SA 3.0") [Improve this answer](https://unix.stackexchange.com/posts/170949/edit) Follow Follow this answer to receive notifications answered Dec 2, 2014 at 2:20 [![Adam\_G's user avatar](https://www.gravatar.com/avatar/a312155705e2fa1ce28841ddf6645da0?s=64&d=identicon&r=PG)](https://unix.stackexchange.com/users/87878/adam-g) [Adam\_G](https://unix.stackexchange.com/users/87878/adam-g) 43311 gold badge66 silver badges1212 bronze badges 1 - This would be good if it worked for the use case in the above question. Instead it: `Do nothing, just clean up SockDir [on possible matches].` ijoseph – [ijoseph](https://unix.stackexchange.com/users/20482/ijoseph "164 reputation") 2025-08-04 17:51:28 +00:00 [Commented Aug 4, 2025 at 17:51](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment1535698_170949) [Add a comment](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens "Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.") \| This answer is useful 16 Save this answer. Show activity on this post. Have recently begun to familiarize myself with awk I put together this and it served its purpose. I posted it since its quite easy to understand. `screen -ls | grep '(Detached)' | awk 'sys {screen -S $1 -X quit}'` Where `screen -ls` lists all current screens. `grep 'pattern'` filters out all matching rows. We can then get a handle for all detached screens and with `awk sys {command}` we can copy and paste together a command and execute it with `sys`, `$1` refers to the first argument picked up by awk. Finally we execute the quit command with `screen -X quit`. [Share](https://unix.stackexchange.com/a/400383 "Short permalink to this answer") Share a link to this answer Copy link [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/ "The current license for this post: CC BY-SA 3.0") [Improve this answer](https://unix.stackexchange.com/posts/400383/edit) Follow Follow this answer to receive notifications answered Oct 25, 2017 at 14:35 [![Eliassen's user avatar](https://www.gravatar.com/avatar/741c796cfe2d98760bea7c906b692af8?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/257361/eliassen) [Eliassen](https://unix.stackexchange.com/users/257361/eliassen) 16111 silver badge22 bronze badges 1 - 17 `screen -ls | grep '(Detached)' | awk '{print $1}' | xargs -I % -t screen -X -S % quit` worked better for me. whereisalext – [whereisalext](https://unix.stackexchange.com/users/373836/whereisalext "101 reputation") 2019-09-22 23:24:25 +00:00 [Commented Sep 22, 2019 at 23:24](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment1007132_400383) [Add a comment](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens "Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.") \| This answer is useful 7 Save this answer. Show activity on this post. ``` str=$(screen -ls) array=$(echo $str|tr "." "\n") for V in $array do if [ $V -gt 0 ] then screen -S $V -X quit fi done ``` [Share](https://unix.stackexchange.com/a/227286 "Short permalink to this answer") Share a link to this answer Copy link [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/ "The current license for this post: CC BY-SA 3.0") [Improve this answer](https://unix.stackexchange.com/posts/227286/edit) Follow Follow this answer to receive notifications [edited Sep 3, 2015 at 14:47](https://unix.stackexchange.com/posts/227286/revisions "show all edits to this post") [![Archemar's user avatar](https://www.gravatar.com/avatar/f3f9c1f4d1bdbfd7fe48751f1bf633a4?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/79818/archemar) [Archemar](https://unix.stackexchange.com/users/79818/archemar) 32\.3k1818 gold badges7575 silver badges107107 bronze badges answered Sep 3, 2015 at 14:39 [![Don Wei's user avatar](https://www.gravatar.com/avatar/9d36c6c0fe72160847d8aff404d9f1a0?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/131522/don-wei) [Don Wei](https://unix.stackexchange.com/users/131522/don-wei) 7111 silver badge22 bronze badges [Add a comment](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens "Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.") \| This answer is useful 5 Save this answer. Show activity on this post. ``` for scr in $(screen -ls | awk '{print $1}'); do screen -S $scr -X kill; done ``` [Share](https://unix.stackexchange.com/a/539784 "Short permalink to this answer") Share a link to this answer Copy link [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/ "The current license for this post: CC BY-SA 4.0") [Improve this answer](https://unix.stackexchange.com/posts/539784/edit) Follow Follow this answer to receive notifications [edited Sep 9, 2019 at 10:45](https://unix.stackexchange.com/posts/539784/revisions "show all edits to this post") [![Jeff Schaller's user avatar](https://lh4.googleusercontent.com/-wBY-4a1-0jo/AAAAAAAAAAI/AAAAAAAAAfc/4BCoMMK1rqg/s64-rj/photo.jpg)](https://unix.stackexchange.com/users/117549/jeff-schaller) [Jeff Schaller](https://unix.stackexchange.com/users/117549/jeff-schaller)♦ 69k3535 gold badges122122 silver badges268268 bronze badges answered Sep 9, 2019 at 10:22 [![user370823's user avatar](https://www.gravatar.com/avatar/eecf3a8240488cf0105d23afc7cdfe58?s=64&d=identicon&r=PG)](https://unix.stackexchange.com/users/370823/user370823) [user370823](https://unix.stackexchange.com/users/370823/user370823) 5111 silver badge11 bronze badge [Add a comment](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens "Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.") \| This answer is useful 3 Save this answer. Show activity on this post. I'm a bit puzzled over how you managed to create 1000 "screens". Did you perhaps mean 1000 screen windows (1000 different terminal windows within a single screen session)? If you meant 1000 windows within a single screen session, then a more elegant solution would be to quit screen using the command `C-a \` (ctrl-a followed by \\). [Share](https://unix.stackexchange.com/a/94561 "Short permalink to this answer") Share a link to this answer Copy link [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/ "The current license for this post: CC BY-SA 3.0") [Improve this answer](https://unix.stackexchange.com/posts/94561/edit) Follow Follow this answer to receive notifications answered Oct 11, 2013 at 0:53 [![Railgun2's user avatar](https://www.gravatar.com/avatar/0733694491044cc3158fd6db9364dd90?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/48976/railgun2) [Railgun2](https://unix.stackexchange.com/users/48976/railgun2) 23511 silver badge44 bronze badges 4 - 1 Try executing screen 1000x within screen. What happens? You get 1000 screen windows. Yes, that's right, screen intelligently and mercifully doesn't spawn 1000 screen sessions. So if the OP had already started screen it should be far easier to accidentally start 1000 screen windows than to start 1000 screen sessions. Railgun2 – [Railgun2](https://unix.stackexchange.com/users/48976/railgun2 "235 reputation") 2013-10-11 01:44:38 +00:00 [Commented Oct 11, 2013 at 1:44](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment143643_94561) - Strange but the comment I was replying to appears to have disappeared. Anyway I'm letting the above comment stand for the record. Railgun2 – [Railgun2](https://unix.stackexchange.com/users/48976/railgun2 "235 reputation") 2013-10-11 01:49:00 +00:00 [Commented Oct 11, 2013 at 1:49](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment143645_94561) - 1 Well it's actually pretty simple. Just make a infinite loop (by accident) and put something like this in there `screen -m sleep 100000`. This happened and I did not notice until it had already created over 1000 screen sessions. BrainStone – [BrainStone](https://unix.stackexchange.com/users/45867/brainstone "3,833 reputation") 2013-10-11 10:14:26 +00:00 [Commented Oct 11, 2013 at 10:14](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment143689_94561) - How exactly does one create an infinite loop by accident? ahron – [ahron](https://unix.stackexchange.com/users/123481/ahron "434 reputation") 2022-07-04 18:13:11 +00:00 [Commented Jul 4, 2022 at 18:13](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment1341456_94561) [Add a comment](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens "Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.") \| This answer is useful 2 Save this answer. Show activity on this post. You can use the screen command itself to list all active screen sessions and then kill them one by one. Here's an example: ``` screen -ls | awk '{print $1}' | xargs -I{} screen -X -S {} quit ``` This will list all active screen sessions using the `screen -ls` command, extract the session IDs using `awk`, and then pass each session ID to the `screen -X -S` command to quit the session. [Share](https://unix.stackexchange.com/a/753767 "Short permalink to this answer") Share a link to this answer Copy link [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/ "The current license for this post: CC BY-SA 4.0") [Improve this answer](https://unix.stackexchange.com/posts/753767/edit) Follow Follow this answer to receive notifications answered Aug 11, 2023 at 3:11 [![Mahesh Belnekar's user avatar](https://www.gravatar.com/avatar/bbfb4c192dcfa6d56b8d714416ffe38b?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/582189/mahesh-belnekar) [Mahesh Belnekar](https://unix.stackexchange.com/users/582189/mahesh-belnekar) 2111 bronze badge [Add a comment](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens "Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.") \| This answer is useful 1 Save this answer. Show activity on this post. The following command will terminate all inactive screens: ``` perl -e 'while (map { kill 9, [split /\./]->[0] } grep { /Detached/ } split /\n/, qx{screen -ls}) { sleep 1 } exec qw(screen -wipe)' ``` [Share](https://unix.stackexchange.com/a/524160 "Short permalink to this answer") Share a link to this answer Copy link [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/ "The current license for this post: CC BY-SA 4.0") [Improve this answer](https://unix.stackexchange.com/posts/524160/edit) Follow Follow this answer to receive notifications [edited Jun 11, 2019 at 9:43](https://unix.stackexchange.com/posts/524160/revisions "show all edits to this post") [![Kevdog777's user avatar](https://www.gravatar.com/avatar/2085d55f5606c692d81fbf7fd4e7979c?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/20752/kevdog777) [Kevdog777](https://unix.stackexchange.com/users/20752/kevdog777) 3,2741818 gold badges4545 silver badges6767 bronze badges answered Jun 11, 2019 at 9:04 [![Michael Vu's user avatar](https://graph.facebook.com/10161913751110451/picture?type=large)](https://unix.stackexchange.com/users/357278/michael-vu) [Michael Vu](https://unix.stackexchange.com/users/357278/michael-vu) 1111 bronze badge 1 - This one works. WestCoastProjects – [WestCoastProjects](https://unix.stackexchange.com/users/66602/westcoastprojects "133 reputation") 2020-02-18 18:40:23 +00:00 [Commented Feb 18, 2020 at 18:40](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens#comment1056697_524160) [Add a comment](https://unix.stackexchange.com/questions/94527/how-do-i-kill-all-screens "Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.") \| ## You must [log in](https://unix.stackexchange.com/users/login?ssrc=question_page&returnurl=https%3A%2F%2Funix.stackexchange.com%2Fquestions%2F94527) to answer this question. Start asking to get answers Find the answer to your question by asking. 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This question shows research effort; it is useful and clear 153 Save this question. Show activity on this post. I accidentally created over 1000 screens. How do I kill them all with one command? (Or a few) asked Oct 10, 2013 at 21:57 [![BrainStone's user avatar](https://www.gravatar.com/avatar/de764cb701641bd5ca3419fda6186edb?s=64&d=identicon&r=PG)](https://unix.stackexchange.com/users/45867/brainstone) 5 This answer is useful 189 Save this answer. Show activity on this post. You can use : ``` pkill screen ``` Or ``` killall screen ``` *** In OSX the process is called SCREEN in all caps. So, use: ``` pkill SCREEN ``` Or ``` killall SCREEN ``` [![Stephen Rauch's user avatar](https://i.sstatic.net/13Fpq.png?s=64)](https://unix.stackexchange.com/users/208146/stephen-rauch) answered Oct 10, 2013 at 22:03 [![Rahul Patil's user avatar](https://www.gravatar.com/avatar/21c870b22afca2aafa4dc8dd3f7776a2?s=64&d=identicon&r=PG)](https://unix.stackexchange.com/users/28434/rahul-patil) 5 This answer is useful 20 Save this answer. Show activity on this post. If the screens are dead, use: ``` screen -wipe ``` answered Dec 2, 2014 at 2:20 [![Adam\_G's user avatar](https://www.gravatar.com/avatar/a312155705e2fa1ce28841ddf6645da0?s=64&d=identicon&r=PG)](https://unix.stackexchange.com/users/87878/adam-g) 1 This answer is useful 16 Save this answer. Show activity on this post. Have recently begun to familiarize myself with awk I put together this and it served its purpose. I posted it since its quite easy to understand. `screen -ls | grep '(Detached)' | awk 'sys {screen -S $1 -X quit}'` Where `screen -ls` lists all current screens. `grep 'pattern'` filters out all matching rows. We can then get a handle for all detached screens and with `awk sys {command}` we can copy and paste together a command and execute it with `sys`, `$1` refers to the first argument picked up by awk. Finally we execute the quit command with `screen -X quit`. answered Oct 25, 2017 at 14:35 [![Eliassen's user avatar](https://www.gravatar.com/avatar/741c796cfe2d98760bea7c906b692af8?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/257361/eliassen) 1 This answer is useful 7 Save this answer. Show activity on this post. ``` str=$(screen -ls) array=$(echo $str|tr "." "\n") for V in $array do if [ $V -gt 0 ] then screen -S $V -X quit fi done ``` [![Archemar's user avatar](https://www.gravatar.com/avatar/f3f9c1f4d1bdbfd7fe48751f1bf633a4?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/79818/archemar) [Archemar](https://unix.stackexchange.com/users/79818/archemar) 32\.3k18 gold badges75 silver badges107 bronze badges answered Sep 3, 2015 at 14:39 [![Don Wei's user avatar](https://www.gravatar.com/avatar/9d36c6c0fe72160847d8aff404d9f1a0?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/131522/don-wei) This answer is useful 5 Save this answer. Show activity on this post. ``` for scr in $(screen -ls | awk '{print $1}'); do screen -S $scr -X kill; done ``` [![Jeff Schaller's user avatar](https://lh4.googleusercontent.com/-wBY-4a1-0jo/AAAAAAAAAAI/AAAAAAAAAfc/4BCoMMK1rqg/s64-rj/photo.jpg)](https://unix.stackexchange.com/users/117549/jeff-schaller) [Jeff Schaller](https://unix.stackexchange.com/users/117549/jeff-schaller)♦ 69k35 gold badges122 silver badges268 bronze badges answered Sep 9, 2019 at 10:22 [![user370823's user avatar](https://www.gravatar.com/avatar/eecf3a8240488cf0105d23afc7cdfe58?s=64&d=identicon&r=PG)](https://unix.stackexchange.com/users/370823/user370823) This answer is useful 3 Save this answer. Show activity on this post. I'm a bit puzzled over how you managed to create 1000 "screens". Did you perhaps mean 1000 screen windows (1000 different terminal windows within a single screen session)? If you meant 1000 windows within a single screen session, then a more elegant solution would be to quit screen using the command `C-a \` (ctrl-a followed by \\). answered Oct 11, 2013 at 0:53 [![Railgun2's user avatar](https://www.gravatar.com/avatar/0733694491044cc3158fd6db9364dd90?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/48976/railgun2) 4 This answer is useful 2 Save this answer. Show activity on this post. You can use the screen command itself to list all active screen sessions and then kill them one by one. Here's an example: ``` screen -ls | awk '{print $1}' | xargs -I{} screen -X -S {} quit ``` This will list all active screen sessions using the `screen -ls` command, extract the session IDs using `awk`, and then pass each session ID to the `screen -X -S` command to quit the session. answered Aug 11, 2023 at 3:11 [![Mahesh Belnekar's user avatar](https://www.gravatar.com/avatar/bbfb4c192dcfa6d56b8d714416ffe38b?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/582189/mahesh-belnekar) This answer is useful 1 Save this answer. Show activity on this post. The following command will terminate all inactive screens: ``` perl -e 'while (map { kill 9, [split /\./]->[0] } grep { /Detached/ } split /\n/, qx{screen -ls}) { sleep 1 } exec qw(screen -wipe)' ``` [![Kevdog777's user avatar](https://www.gravatar.com/avatar/2085d55f5606c692d81fbf7fd4e7979c?s=64&d=identicon&r=PG&f=y&so-version=2)](https://unix.stackexchange.com/users/20752/kevdog777) [Kevdog777](https://unix.stackexchange.com/users/20752/kevdog777) 3,27418 gold badges45 silver badges67 bronze badges answered Jun 11, 2019 at 9:04 [![Michael Vu's user avatar](https://graph.facebook.com/10161913751110451/picture?type=large)](https://unix.stackexchange.com/users/357278/michael-vu) 1 ## You must [log in](https://unix.stackexchange.com/users/login?ssrc=question_page&returnurl=https%3A%2F%2Funix.stackexchange.com%2Fquestions%2F94527) to answer this question. Start asking to get answers Find the answer to your question by asking. 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