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Comment by alberand

1 year ago

My fav script to unpack anything, found a few years ago somewhere

      # ex - archive extractor
      # usage: ex <file>
      function ex() {
          if [ -f $1 ] ; then
          case $1 in
              *.tar.bz2) tar xjf $1 ;;
              *.tar.gz) tar xzf $1 ;;
              *.tar.xz) tar xf $1 ;;
              *.bz2) bunzip2 $1 ;;
              *.rar) unrar x $1 ;;
              *.gz) gunzip $1 ;;
              *.tar) tar xf $1 ;;
              *.tbz2) tar xjf $1 ;;
              *.tgz) tar xzf $1 ;;
              *.zip) unzip $1 ;;
              *.Z) uncompress $1;;
              *.7z) 7z x $1 ;;
              *) echo "'$1' cannot be extracted via ex()" ;;
          esac
          else
              echo "'$1' is not a valid file"
          fi
      }

11 comments

alberand

Reply
manbitesdog  1 year ago

That's brilliant. Now I need its compressing counterpart.

  • alberand  1 year ago

    For compression, I have one for .tar.gz. But it's not that popular in my system. I need something a bit easier than 'pack file file file archive.tar.gz'

YouAreWRONGtoo  1 year ago

Now, add inotify and a systemd user service and you would be getting somewhere. Also packaged versions of that exist already.

So, you created a square wheel, instead of a NASA wheel.

junkblocker  1 year ago

I had found a zsh version somewhere which I've updated a few times over the years though I don't get a chance to use it much. :'D

    un () {
 unsetopt extendedglob
 local old_dirs current_dirs lower do_cd
 if [ -z "$1" ]
 then
  print "Must supply an archive argument."
  return 1
 fi
 if [ -d "$1" ]
 then
  print "Can't do much with directory arguments."
  return 1
 fi
 if [ ! -e "$1" -a ! -h "$1" ]
 then
  print "$1 does not exist."
  return 1
 fi
 if [ ! -r "$1" ]
 then
  print "$1 is not readable."
  return 1
 fi
 do_cd=1 
 lower="${(L)1}" 
 old_dirs=(*(N/)) 
 undone=false 
 if which unar > /dev/null 2>&1 && unar "$1"
 then
  undone=true 
 fi
 if ! $undone
 then
  INFO="$(file "$1")" 
  INFO="${INFO##*: }" 
  if command grep -a --line-buffered --color=auto -E "Zstandard compressed data" > /dev/null <<< "$INFO"
  then
   zstd -T0 -d "$1"
  elif command grep -a --line-buffered --color=auto -E "bzip2 compressed" > /dev/null <<< "$INFO"
  then
   bunzip2 -kv "$1"
  elif command grep -a --line-buffered --color=auto -E "Zip archive" > /dev/null <<< "$INFO"
  then
   unzip "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E "RAR archive" > /dev/null
  then
   unrar e "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E 'xar archive' > /dev/null
  then
   xar -xvf "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "tar archive" > /dev/null
  then
   if which gtar > /dev/null 2>&1
   then
    gtar xvf "$1"
   else
    tar xvf "$1"
   fi
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "LHa" > /dev/null
  then
   lha e "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "LHa" > /dev/null
  then
   lha e "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E "compress'd" > /dev/null
  then
   uncompress -c "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E "xz compressed" > /dev/null
  then
   unxz -k "$1"
   do_cd=0 
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E "7-zip" > /dev/null
  then
   7z x "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E "RPM " > /dev/null
  then
   if [ "$osname" = "Darwin" ]
   then
    rpm2cpio "$1" | cpio -i -d --quiet
   else
    rpm2cpio "$1" | cpio -i --no-absolute-filenames -d --quiet
   fi
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E "cpio archive" > /dev/null
  then
   cpio -i --no-absolute-filenames -d --quiet < "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E "Debian .* package" > /dev/null
  then
   dpkg-deb -x "$1" .
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i " ar archive" > /dev/null
  then
   ar x "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "ACE archive" > /dev/null
  then
   unace e "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "ARJ archive" > /dev/null
  then
   arj e "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "xar archive" > /dev/null
  then
   xar -xvf "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "ZOO archive" > /dev/null
  then
   zoo x "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -Ei "(tnef|Transport Neutral Encapsulation Format)" > /dev/null
  then
   tnef "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "InstallShield CAB" > /dev/null
  then
   unshield x "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -Ei "(mail|news)" > /dev/null
  then
   formail -s munpack < "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "uuencode" > /dev/null
  then
   uudecode "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "cab" > /dev/null
  then
   cabextract "$1"
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E -i "PPMD archive" > /dev/null
  then
   ln -s "$1" . && ppmd d "$1" && rm `basename "$1"`
  elif [[ $lower == *.zst ]]
  then
   zstd -T0 -d "$1"
  elif [[ $lower == *.bz2 ]]
  then
   bunzip2 -kv "$1"
  elif [[ $lower == *.zip ]]
  then
   unzip "$1"
  elif [[ $lower == *.jar ]]
  then
   unzip "$1"
  elif [[ $lower == *.xpi ]]
  then
   unzip "$1"
  elif [[ $lower == *.rar ]]
  then
   unrar e "$1"
  elif [[ $lower == *.xar ]]
  then
   xar -xvf "$1"
  elif [[ $lower == *.pkg ]]
  then
   xar -xvf "$1"
  elif [[ $lower == *.tar ]]
  then
   if which gtar > /dev/null 2>&1
   then
    gtar xvf "$1"
   else
    tar xvf "$1"
   fi
  elif [[ $lower == *.tar.zst || $lower == *.tzst ]]
  then
   which gtar > /dev/null 2>&1
   if [[ $? == 0 ]]
   then
    gtar -xv -I 'zstd -T0 -v' -f "$1"
   elif [[ ${OSTYPE:l} == linux* ]]
   then
    tar -xv -I 'zstd -T0 -v' -f "$1"
   else
    zstd -d -v -T0 -c "$1" | tar xvf -
   fi
  elif [[ $lower == *.tar.gz || $lower == *.tgz ]]
  then
   which gtar > /dev/null 2>&1
   if [[ $? == 0 ]]
   then
    gtar zxfv "$1"
   elif [[ ${OSTYPE:l} == linux* ]]
   then
    tar zxfv "$1"
   else
    gunzip -c "$1" | tar xvf -
   fi
  elif [[ $lower == *.tar.z ]]
  then
   uncompress -c "$1" | tar xvf -
  elif [[ $lower == *.tar.xz || $lower == *.txz ]]
  then
   which gtar > /dev/null 2>&1
   if [[ $? == 0 ]]
   then
    xzcat "$1" | gtar xvf -
   else
    xzcat "$1" | tar xvf -
   fi
  elif echo "$INFO" | command grep -a --line-buffered --color=auto -E 'gzip compressed' > /dev/null || [[ $lower == *.gz ]]
  then
   if [[ $lower == *.gz ]]
   then
    gzcat -d "$1" > "${1%.gz}"
   else
    cat "$1" | gunzip -
   fi
   do_cd=0 
  elif [[ $lower == *.tar.bz2 || $lower == *.tbz ]]
  then
   bunzip2 -kc "$1" | tar xfv -
  elif [[ $lower == *.tar.lz4 ]]
  then
   local mytar
   if [[ -n "$(command -v gtar)" ]]
   then
    mytar=gtar 
   else
    mytar=tar 
   fi
   if [[ -n "$(command -v lz4)" ]]
   then
    $mytar -xv -I lz4 -f "$1"
   elif [[ -n "$(command -v lz4cat)" ]]
   then
    lz4cat -kd "$1" | $mytar xfv -
   else
    print "Unknown archive type: $1"
    return 1
   fi
  elif [[ $lower == *.lz4 ]]
  then
   lz4 -d "$1"
  elif [[ $lower == *.epub ]]
  then
   unzip "$1"
  elif [[ $lower == *.lha ]]
  then
   lha e "$1"
  elif which aunpack > /dev/null 2>&1
  then
   aunpack "$@"
   return $?
  else
   print "Unknown archive type: $1"
   return 1
  fi
 fi
 if [[ $do_cd == 1 ]]
 then
  current_dirs=(*(N/)) 
  for i in {1..${#current_dirs}}
  do
   if [[ $current_dirs[$i] != "$old_dirs[$i]" ]]
   then
    cd "$current_dirs[$i]"
    ls
    break
   fi
  done
 fi
    }