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Add example for looping over command output

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adigitoleo 2022-02-12 21:20:59 +11:00
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@ -46,6 +46,7 @@ See something incorrectly described, buggy or outright wrong? Open an issue or s
* [Loop over a (*small*) range of numbers](#loop-over-a-small-range-of-numbers)
* [Loop over a variable range of numbers](#loop-over-a-variable-range-of-numbers)
* [Loop over the contents of a file](#loop-over-the-contents-of-a-file)
* [Loop over the output of a command](#loop-over-the-output-of-a-command)
* [Loop over files and directories](#loop-over-files-and-directories)
* [VARIABLES](#variables)
* [Name a variable based on another variable](#name-a-variable-based-on-another-variable)
@ -649,6 +650,14 @@ while IFS= read -r line || [ -n "$line" ]; do
done < "file"
```
## Loop over the output of a command
```shell
command|while IFS= read -r line || [ -n "$line" ]; do
printf '%s\n' "$line"
done
```
## Loop over files and directories
Don’t use `ls`.