Linux Useful Command

• Convert linefeeds for all files in a folder | Bravehartk2’s Blog"

  find . -type f -print0 | xargs -P 4 -0 -n 1  dos2unix 
  

• How to remove duplicates and sort entries in zsh history - Quora

  cat -n .zsh_history | sort -t ';' -uk2 | sort -nk1 | cut -f2- > .zsh_short_history
  

• Linux Clear Journalctl Log

  # remove all file
  sudo rm -rf /run/log/journal/*
  # or
  sudo journalctl --vacuum-time=1seconds
  sudo journalctl --vacuum-size=0M