bin/archive

#!/usr/bin/env sh
#
# pbrisbin 2013 - compress/extract archives by extension.
#
###
if [ -z "$1" ]; then
  printf "usage: archive [ -x ] [ file, ... ]\n" >&2
  exit 1
fi

case "$1" in
  -x|--extract)
    shift

    for archive; do
      case "$archive" in
        *.tbz2|*.tar.bz2) tar xvjf "$archive"   ;;
        *.tgz|*.tar.gz)   tar xvzf "$archive"   ;;
        *.tar)            tar xvf "$archive"    ;;
        *.gz)             gunzip "$archive"     ;;
        *.bz2)            bunzip2 "$archive"    ;;
        *.zip)            unzip "$archive"      ;;
        *.rar)            unrar x "$archive"    ;;
        *.Z)              uncompress "$archive" ;;
        *.7z)             7z x "$archive"       ;;
        *)
          printf "%s: unknown extension\n" "$archive" >&2
          exit 1
          ;;
      esac
    done
    ;;

  *)
    target="$1"; shift

    case "$target" in
      *.tbz2|*.tar.bz2) tar cvpjf "$target" "$@"     ;;
      *.tgz|*.tar.gz)   tar cvpzf "$target" "$@"     ;;
      *.gz)             cat "$@" | gzip > "$target"  ;;
      *.bz2)            cat "$@" | bzip2 > "$target" ;;
      *.zip)            zip -r "$target" "$@"        ;;
      *)                $0 "$target.tar.gz" "$target" "$@" ;;
    esac
    ;;
esac