tldr/pages/common/for.md

for

Perform a command several times. More information: https://www.gnu.org/software/bash/manual/bash.html#Looping-Constructs.

• Iterate through command line arguments:

for {{variable}}; do {{echo $variable}}; done

• Execute the given commands for each of the specified items:

for {{variable}} in {{item1 item2 ...}}; do {{echo "Loop is executed"}}; done

• Iterate over a given range of numbers:

for {{variable}} in {{{from}}..{{to}}..{{step}}}; do {{echo "Loop is executed"}}; done

• Iterate over a given list of files:

for {{variable}} in {{path/to/file1 path/to/file2 ...}}; do {{echo "Loop is executed"}}; done

• Iterate over a given list of directories:

for {{variable}} in {{path/to/directory1/ path/to/directory2/ ...}}; do {{echo "Loop is executed"}}; done

• Perform a given command in every directory:

for {{variable}} in */; do (cd "${{variable}}" || continue; {{echo "Loop is executed"}}) done