obscure_shell_syntax_schumatize_draft2.md

Master version: https://github.com/sarnobat/sarnobat.github.io/blob/main/_posts/2025-06-06-obscure-shell-syntax-draft2.markdown

# Obscure Shell Syntax
(this layout might be better: https://github.com/dylanaraps/pure-sh-bible?tab=readme-ov-file#default-value ) 2025-03-15: improve on this: https://gist.github.com/ClementNerma/1dd94cb0f1884b9c20d1ba0037bdcde2

!:0

!:1

!:1-3

!:1-

!#1

!$

!^

!*

!#

!!

!!:p

!!:s/foo/bar/

!!:gs/foo/bar/

!ls

!ls:3

$PWD

${PWD}

${PWD:gs/Users/home/}

${PWD:s/Users/home/}

"${PWD:/$HOME/~/}"

${PWD:3:5}

${FILE:-/tmp/in.txt}

${FILE:=/tmp/in.txt}

${1:"fallback_value"}

${1:-"fallback_value"}

${1:+"value_if_set"}

${1:?"missing argument. Exiting."}

$@

$1

$2

$_

$?

$$

$!

""

$""

$''

${PWD:l}

${PWD:u}

${PWD:t}

${PWD:r}

${PWD:t:u}

~~What the end result will look like (think about if this is what you really want: https://learnxinyminutes.com/vimscript/ )~~

sarnobat/obscure_shell_syntax_schumatize_draft2.md

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