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slowly working on a mega terminal cheat sheet
here's a link to the draft as a PDF: https://jvns.ca/terminal-cheat-sheet-draft.pdf
@b0rk **/ is new to me
@weaselx86 In Bash you have to enable **/ with `shopt -s globstar`.
@b0rk **/ is useful enough and Bash common enough that IMO it'd be worth adding the above to the sheet.
edit: I'd said `extglob`, not `globstar`. My apologies for the misinformation.
** searches down _multiple_ directory levels recursively. So while they'd both find things 1 layer down like foo/bar.txt, **/*.txt will find foo/bar/baz.txt while */*.txt won't.
If you have a directory structure like this..:
foo/apple.txt
foo/orange.txt
foo/ds
bar/bread.txt
bar/banas.txt
bar/exceptions/twizzlers.txt
bar/exceptions/disillusionment.png
...then */*.txt will not match twizzlers.txt but **/*.txt will: that is, ** recurses into subdirectories (including dot-prefixed "hidden" subdirectories, modulo the dotglob setting) whereas * does not.
(This is controlled by the globstar setting, not the extglob setting; that does other stuff.)
@weaselx86 and because I should cite my assertions but was constrained by post length there..:
- here's what the extglob setting controls: https://www.gnu.org/software/bash/manual/html_node/Pattern-Matching.html
- here's where globstar and dotglob are explained: https://www.gnu.org/software/bash/manual/html_node/The-Shopt-Builtin.html (every other option with a name including the word "glob" is also very much worth knowing about in detail)
- and here's a convenient table about which shopt feature was added in which version of bash: https://mywiki.wooledge.org/BashFAQ/061 (should be in the manual, dangit!)