last_modified_at: 2026-08-08

Shell & Vim Quick Reference — Quick reference for shell commands, vim basics, and essential CLI tools. — https://www.pirahansiah.com/notes/docs/shell-vim/ Quick reference for shell commands, vim basics, and essential CLI tools.

Last updated: 2026-08-08.

• NeoHtop
• The Shell
  • echo
    • ”” \
    • $PATH

    • cd -

    • ctrl+L to clean

    • ctrl+r

    • append

    • output into

      input

    • into root or sudo su

    • xdg-open opent the file with reletive app
    • foo=bar ; must be without space
    • echo “value is $foo” -> value is bar
    • echo ‘value is $foo’ -> value is $foo
    • mcd () { mkdir -p “$1” cv “$1” } source mcd.sh !! command + / option+shif+a

#!/usr/bin/env python import sys for arg in reversed(sys.argv[1:]): print(arg)

tools

tldr locate grep ripgrep = rg fzf broot nnn

vim

i esc r k s-v c-v :