---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# for

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

- Iterate through command line parameters:

`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`
