DZone Snippets: rar code

Decompress several filetypes with a single script

zdenton (Zach Denton) — Fri, 18 Jul 2008 02:07:02 GMT

// Decompresses Z, gz, bz2, zip, rar, tar, and 7z with a single 'decompress' command



#!/bin/bash



# decompress - will decompress a file, regardless of compression type.



Z="compress -d"

gz="gunzip"

bz="bunzip2"

zip="unzip -qo"

rar="unrar x -id -y"

tar="tar xf"

7z="p7zip -d"



if [ $# -eq 0 ]; then

    echo "Usage: decompress file or files to decompress">&2

    exit 1

fi



for name

do

	if [ ! -f "$name" ] ; then

		echo "$0: file $name not found. Skipped." >&2

		continue

	fi



	if [ "$(echo $name | egrep '(\.Z$|\.gz$|\.bz2$|\.zip$|\.rar$|\.tar$|\.tgz$|\.7z$)')" = "" ] ; then

		echo "Skipped file ${name}: it's already decompressed." 

      		continue

	fi



	extension=${name##*.}



	case "$extension" in

		Z ) echo "Filetype is Z. Decompressing..."

		    $Z "$name"

		    ;;

		gz ) echo "Filetype is gz. Decompressing..."

		     $gz "$name"

		     ;;

		bz2 ) echo "Filetype is bz2. Decompressing..."

 		     $bz "$name"

		     ;;

		zip ) echo "Filetype is zip. Decompressing..."

		      $zip "$name"

		      ;;

		rar ) echo "Filetype is rar. Decompressing..."

		      $rar "$name"

		      ;;

		tar ) echo "Filetype is tar. Decompressing..."

              	      $tar "$name"

              	      ;;

		tgz ) echo "Filetype is tgz. Decompressing..."

              	      $tar "$name"

                     ;;

               7z ) echo "Filetype is 7z. Decompressing..."

                     $7z "$name"

	esac



done



exit 0

compress files with rar

nevadalife (nevada) — Sat, 23 Sep 2006 18:26:47 GMT

rar files with max compressiong and split them into 450k.



rar a -s -v450 -m5 test.rar test/*

Create a single JPG gallery from an image archive

madphilosopher (Darren Paul Griffith) — Wed, 09 Nov 2005 07:05:13 GMT

The following comes from Jason Scott and is posted here with permission under the Creative Commons Attribution-ShareAlike License.

The script expands a zip or rar archive of images, makes thumbnails, and compiles the thumbnails into a single JPG to represent what's in the archive. Requires ImageMagick.

Code:



#!/bin/sh

# GALLERATE: Turn a zip of images into a gallery.

# From Jason Scott. http://ascii.textfiles.com/archives/000137.html

if [ -f "$1" ]

   then

   rm -rf .galleryworld

   echo "[%] Preparting to squat out $1...."

   mkdir .galleryworld

   cd .galleryworld

   unzip -j "../$1"

   unrar e -ep "../$1"

   echo "[%] WHY DOES IT HURT!!!!"

   montage +frame +shadow +label -tile 7 *.JPG *.GIF *.gif *.jpg *.bmp *.png *.PNG *.BMP "../$1.jpg"

   cd ..

   rm -rf .galleryworld

   ls -l "$1.jpg"

  else

  echo "No such file, assmaster."

fi

Usage:



GALLERATE [file]

where [file] is the zip or rar archive of images to be processed.