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Add example for looping over command output #44

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9 changes: 9 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -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)
Expand Down Expand Up @@ -649,6 +650,14 @@ while IFS= read -r line || [ -n "$line" ]; do
done < "file"
```

## Loop over the output of a command

```shell
while IFS= read -r line || [ -n "$line" ]; do
printf '%s\n' "$line"
done <<EOF
$(command)
EOF
## Loop over files and directories

Don’t use `ls`.
Expand Down