#!/bin/sh
# ex - archive extractor
# usage: ex <file>
for arg do
  if test -r "$arg"; then
    case "$arg" in
      *.tar.bz2)   tar xjf "$arg"   ;;
      *.tar.gz)    tar xzf "$arg"   ;;
      *.bz2)       bunzip2 "$arg"   ;;
      *.rar)       unrar x "$arg"   ;;
      *.gz)        gunzip "$arg"    ;;
      *.tar)       tar xf "$arg"    ;;
      *.tbz2)      tar xjf "$arg"   ;;
      *.tgz)       tar xzf "$arg"   ;;
      *.zip|*.jar) unzip "$arg"     ;;
      *.Z)         uncompress "$arg";;
      *.7z)        7z x "$arg"      ;;
      *.deb)       ar x "$arg"      ;;
      *.tar.xz)    tar xf "$arg"    ;;
      *.zst)   unzstd "$arg"    ;;
      *)           echo "'$arg' cannot be extracted by ex" ;;
    esac
  else
    echo "'$1' is not a readable file"
  fi
done