iankelling.org Git - small-misc-bash/blob - ex

   1 #!/bin/bash
   2 # Copyright (C) 2014 Ian Kelling
   3
   4 # Licensed under the Apache License, Version 2.0 (the "License");
   5 # you may not use this file except in compliance with the License.
   6 # You may obtain a copy of the License at
   7
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9
  10 # Unless required by applicable law or agreed to in writing, software
  11 # distributed under the License is distributed on an "AS IS" BASIS,
  12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16 ex() {
  17     local help="Usage: ex [--help] FILE...
  18 Extract many types of files
  19
  20 Based on their extensions,
  21 7z [tar.]bz2 deb [tar.]gz iso dsc rar rpm sfs tar xpi [tar.]xz zip Z.
  22 See source for exact file extensions.
  23 Note: dtrx (package & command) extracts most of these plus some others."
  24
  25     if [[ $1 == --help ]]; then
  26         echo "$help"
  27     fi
  28     local x super
  29     for x in "$@"; do
  30         case "$x" in
  31             # tars first, so they are higher pri than non-tar extensions
  32             *.tar ) tar xf "$x" ;;
  33             *.tar.bz2 | *.tbz2 ) tar xjf "$x" ;;
  34             *.tar.gz | *.tgz ) tar xzf "$x" ;;
  35             *.tar.xz ) tar Jxf "$x" ;;
  36             *.xz) xz -d "$x" ;;
  37             *.7z ) 7za x "$x" ;;
  38             *.bz2 ) bunzip2 "$x" ;;
  39             *.deb )
  40               ar x "$x"
  41               tmp=(data.tar.*)
  42               case $tmp in
  43                 *.xz) tar xJf data.tar.xz ;;
  44                 *.gz) tar xzf data.tar.gz ;;
  45                 *) echo "error: could not find data.tar.*" >&2; exit 1 ;;
  46               esac
  47               tar xzf control.tar.gz
  48               rm -f control.tar.gz
  49               rm -f data.tar.*
  50               ;;
  51             *.dsc) dpkg-source -x "$x" ;;
  52             *.gz ) gunzip  "$x" ;;
  53             *.iso )
  54                 local super
  55                 if [[ $EUID != 0 ]]; then
  56                     super=sudo
  57                 fi
  58                 local temp_dir=$(mktemp -d)
  59                 $super losetup -f
  60                 $super mount -o loop "$x" "$temp_dir"
  61                 local dir="${x%%.iso}"
  62                 mkdir "$dir"
  63                 cp -a "$temp_dir"/* "$dir"
  64                 $super umount "$temp_dir"
  65                 ;;
  66             *.jar) jar xf "$x" ;;
  67             *.r[0-9][0-9]|*.rar ) unrar x "$x" ;;
  68             *.rpm ) rpm2cpio "$x" | cpio --extract --make-directories ;;
  69             *.sfs) $super unsquashfs "$x" ;;
  70             *.Z ) uncompress "$x" ;;
  71             *.zip|*.xpi ) unzip "$x" ;;
  72
  73             *)  echo "I don't know how to extract $x";;
  74         esac
  75     done
  76 }
  77 ex "$@"