I can’t recall this one liner, so here is how to resize all .jpg files in a directory, and store the result in the
mkdir -p small for f in *.jpg; do convert -resize 25% $f small/$f; done;
The thing is, I can’t make a blog post everytime I need to remember a command
Actually years ago I made a list of all those weird commands I can’t quite remember completely (I’m looking at you,
tar), but I’ve even forgotten about that:
Another option when you know the command is to use tldr. I use tealdeer, which is a very fast rust client. It provides easy snippets right in the shell:
$ tldr seq Output a sequence of numbers to stdout. More information: <https://www.gnu.org/software/coreutils/seq>. Sequence from 1 to 10: seq 10 Every 3rd number from 5 to 20: seq 5 3 20 Separate the output with a space instead of a newline: seq -s " " 5 3 20 Format output width to a minimum of 4 digits padding with zeros as necessary: seq -f "%04g" 5 3 20 $ tldr for Shell loop over parameters. More information: <https://man.archlinux.org/man/for.n>. Perform a command with different arguments: for argument in 1 2 3; do command $argument; done Perform a command in every directory: for d in *; do (cd $d; command); done
See a typo ? You can suggest a modification on Github.