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[Sitemap](https://medium.com/sitemap/sitemap.xml) [Open in app](https://play.google.com/store/apps/details?id=com.medium.reader&referrer=utm_source%3DmobileNavBar&source=post_page---top_nav_layout_nav-----------------------------------------) Sign up [Sign in](https://medium.com/m/signin?operation=login&redirect=https%3A%2F%2Fmedium.com%2F%40codingcampus%2Fbash-for-loop-with-examples-ff1d88b9ad42&source=post_page---top_nav_layout_nav-----------------------global_nav------------------) [Medium Logo](https://medium.com/?source=post_page---top_nav_layout_nav-----------------------------------------) [Write](https://medium.com/m/signin?operation=register&redirect=https%3A%2F%2Fmedium.com%2Fnew-story&source=---top_nav_layout_nav-----------------------new_post_topnav------------------) [Search](https://medium.com/search?source=post_page---top_nav_layout_nav-----------------------------------------) Sign up [Sign in](https://medium.com/m/signin?operation=login&redirect=https%3A%2F%2Fmedium.com%2F%40codingcampus%2Fbash-for-loop-with-examples-ff1d88b9ad42&source=post_page---top_nav_layout_nav-----------------------global_nav------------------)  # [Bash For Loop (With Examples)](https://codingcampus.net/wp-admin/post.php?post=410&action=edit) [](https://medium.com/@codingcampus?source=post_page---byline--ff1d88b9ad42---------------------------------------) [CodingCampus](https://medium.com/@codingcampus?source=post_page---byline--ff1d88b9ad42---------------------------------------) 3 min read · Nov 23, 2023 \-- Listen Share Press enter or click to view image in full size ![]() Bash for loop is a bash statement that allows code to be executed repeatedly. Loops can be used at the command line prompt or within a shell script. ## Bash for Loop Basic Syntax The basic syntax of bash for loop is ``` for <variable> in <list> do <commands> done ``` - **\<list\>** is a sequence of any values (words, numbers, etc.) separated by spaces. - **\<commands\>** is a set of any valid Bash command (usually executed over a list of items). - **for** is a loop syntax keyword. - **\<variable\>** is a bash variable name used to get access to the item from the list. Here’s a basic bash for loop example. ``` for VARIABLE in "blue" "green" "red" "orange" "yellow" do echo "$VARIABLE" done ``` Press enter or click to view image in full size ![]() A basic example of bash for loop. You can see a list of our variables (blue, green, red, orange, yellow) displayed in the terminal. ## Basic Bash For Loop Examples ## Strings Example In this example, we display the days of the work week. ``` for weekday in Monday Tuesday Wednesday Thursday Friday do echo "Day of the week is $weekday" done ``` Press enter or click to view image in full size ![]() Strings example — bash for loop ## Range Example In this example, we count (the range) from **45** to **50**. ``` for num in {45..50} do echo "The number is $num" done ``` Press enter or click to view image in full size ![]() Range example — bash for loop ## Arrays Example In this example, we iterate through the teams in the **nflteams** array. ``` nflteam=('Chiefs' 'Raiders' 'Broncos' 'Chargers') for nflteam in "${nflteam[@]}" do echo "NFL Team: $nflteam" done ``` Press enter or click to view image in full size ![]() Array example — bash for loop ## Increments Example In this example, we count from **0** to **40** in increments of **10**. ``` for num in {0..40..10} do echo "The number is $num" done ``` Press enter or click to view image in full size ![]() Increments example — bash for loop ## Infinite Loop Example In this example, we create an infinite loop using an empty expression. The only way to stop the loop is by pressing **\<Ctrl\>C**. ``` for (( ; ; )) do echo "This is an infinite loop! [Press CTRL+C to abort]" done ``` Press enter or click to view image in full size ![]() Infinite loop example -bash for loop ## Break Statement Example In this example, we cycle through the letters **K** through **Q** and break when we come to the letter **O**. ``` for letter in {K..Q} do if [[ "$letter" == 'O' ]]; then break fi echo "The letter is: $letter" done ``` Press enter or click to view image in full size ![]() Break statement example — bash for loop ## Continue Statement Example In this example, we cycle through the numbers **1** through **10**. When we come to the number **5**, we skip the number and continue counting until we reach **10**. ``` for num in {1..10} do if [[ "$num" == '5' ]]; then continue fi echo "The number is: $num" done ``` Press enter or click to view image in full size ![]() Continue statement example — bash for loop. 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[](https://medium.com/@codingcampus?source=post_page---byline--ff1d88b9ad42---------------------------------------) 3 min read Nov 23, 2023 \-- Press enter or click to view image in full size Bash for loop is a bash statement that allows code to be executed repeatedly. Loops can be used at the command line prompt or within a shell script. ## Bash for Loop Basic Syntax The basic syntax of bash for loop is ``` for <variable> in <list> do <commands> done ``` - **\<list\>** is a sequence of any values (words, numbers, etc.) separated by spaces. - **\<commands\>** is a set of any valid Bash command (usually executed over a list of items). - **for** is a loop syntax keyword. - **\<variable\>** is a bash variable name used to get access to the item from the list. Here’s a basic bash for loop example. ``` for VARIABLE in "blue" "green" "red" "orange" "yellow" do echo "$VARIABLE" done ``` Press enter or click to view image in full size A basic example of bash for loop. You can see a list of our variables (blue, green, red, orange, yellow) displayed in the terminal. ## Basic Bash For Loop Examples ## Strings Example In this example, we display the days of the work week. ``` for weekday in Monday Tuesday Wednesday Thursday Friday do echo "Day of the week is $weekday" done ``` Press enter or click to view image in full size Strings example — bash for loop ## Range Example In this example, we count (the range) from **45** to **50**. ``` for num in {45..50} do echo "The number is $num" done ``` Press enter or click to view image in full size Range example — bash for loop ## Arrays Example In this example, we iterate through the teams in the **nflteams** array. ``` nflteam=('Chiefs' 'Raiders' 'Broncos' 'Chargers') for nflteam in "${nflteam[@]}" do echo "NFL Team: $nflteam" done ``` Press enter or click to view image in full size Array example — bash for loop ## Increments Example In this example, we count from **0** to **40** in increments of **10**. ``` for num in {0..40..10} do echo "The number is $num" done ``` Press enter or click to view image in full size Increments example — bash for loop ## Infinite Loop Example In this example, we create an infinite loop using an empty expression. The only way to stop the loop is by pressing **\<Ctrl\>C**. ``` for (( ; ; )) do echo "This is an infinite loop! [Press CTRL+C to abort]" done ``` Press enter or click to view image in full size Infinite loop example -bash for loop ## Break Statement Example In this example, we cycle through the letters **K** through **Q** and break when we come to the letter **O**. ``` for letter in {K..Q} do if [[ "$letter" == 'O' ]]; then break fi echo "The letter is: $letter" done ``` Press enter or click to view image in full size Break statement example — bash for loop ## Continue Statement Example In this example, we cycle through the numbers **1** through **10**. When we come to the number **5**, we skip the number and continue counting until we reach **10**. ``` for num in {1..10} do if [[ "$num" == '5' ]]; then continue fi echo "The number is: $num" done ``` Press enter or click to view image in full size Continue statement example — bash for loop.