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

   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 each FILE according to its extension.
  19 7z bz2 deb gz iso rar rpm tar xz zip & variations.
  20 See source for exact file extensions."
  21     if [[ $1 == --help ]]; then
  22         echo "$help"
  23     fi
  24     local x super
  25     for x in "$@"; do
  26         case "$x" in
  27             *.tar.bz2 | *.tbz2 ) tar xvjf "$x" ;;
  28             *.tar.gz | *.tgz ) tar xvzf "$x" ;;
  29             *.bz2 ) bunzip2 "$x" ;;
  30             *.gz ) gunzip  "$x" ;;
  31             *.tar ) tar xvf "$x" ;;
  32             *.zip ) unzip "$x" ;;
  33             *.Z ) uncompress "$x" ;;
  34             *.7z ) 7za x "$x" ;;
  35             *.deb ) ar xv "$x" ;;
  36             *.rpm ) rpm2cpio "$x" | cpio --extract --make-directories --verbose ;;
  37             *.tar.xz ) tar Jxvf "$x" ;;
  38             *.iso )
  39                 if [[ $EUID != 0 ]]; then
  40                     if [[ $(sudo -v) == Sorry* ]]; then
  41                         echo error: need superuser priveledge for iso file
  42                         return 1
  43                     fi
  44                     super=sudo
  45                 fi
  46                 local temp_dir=$(mktemp -d)
  47                 losetup -f
  48                 $super mount -o loop "$x" "$temp_dir"
  49                 local dir="${x%%.iso}"
  50                 mkdir "$dir"
  51                 cp -av "$temp_dir"/* "$dir"
  52                 $super umount "$temp_dir"
  53                 ;;
  54             *.r[0-9][0-9]|*.rar ) unrar x "$x" ;;
  55             *)  echo "I don't kno how to extract $x";;
  56         esac
  57     done
  58 }