idea

Shell is shell

Control exceptions^[1]: set -e to fail script on exception, set -u to fail on variable unset, set -o to fail pipeline failure.
watchdog: use watch
recover deleted files: use lsof | grep deleted
count utterances of words: find . -name '*.md' | xargs cat | tr " .,'\"“”" $'\n' | sort | uniq -ic | sort -r
check shell: shellcheck
sed: echo howtogonk | sed 's/gonk/geek/'
Separator for iteration: IFS=$'\n'
ls directories only: ls -d */
recursive mkdir: mkdir -p (-p for parents)

Functions

```sh something() { p1=$1 }

references