#TIL In bash you can create multiple (nested) directories with a single compact line:

[carl@chaos.social]

@cark modifiziert -p is idempotent, too!
Like in any Script:

tempdir_for_script=“/tmp/tempdir_for_$(basename “$0”)

Later in the script:
<result to log> >> “$tempdir_for_script”

Last line of script:
# rm -r “$tempdir_for_script”

(Remove # after full debugging)

[matthias@gruene.social]

@cark tested on OpenIndiana. Works in the same way. Thx!

[matthias@gruene.social]

@cark and also with fish on cachyos linux.

[compfu@mograph.social]

@cark Man, curly braces in bash creep me out. I can never remember whether that you need a comma to separate items (because glob expansion produces spaces). If I tried to build that command I would get errors or subfolders called ;

[montyzuma@mastodontech.de]

@cark Shell expansion magic

[danimrich@mastodon.social]

@cark This is a very neat trick of the sort where you learn about it and then spend five minutes thinking of a scenario where it would be useful.

[proedie@mastodon.green]

@cark Whaaaat?! 🤯

[jantheowassink@chaos.social]

@cark Brilliant, thanks for sharing!

[arnotron@noc.social]

@cark I love brace expressions to create backup copies or rename files. E.g. cp a{,.bak} or me b{,.old}

[cark@social.tchncs.de]

@arnotron

I was not aware of this technique until recently... and yes I see also there are more use cases e.g. with `cp` and `mv`.