#! /bin/bash
# #############################################################################

       NAME_="unzip2dir"
    PURPOSE_="extract zip file to a dir of the same name as zip's prefix"
   SYNOPSIS_="$NAME_ [-vhlr] <file> [file...]"
   REQUIRES_="standard GNU commands, unzip"
    VERSION_="1.1"
       DATE_="1999-08-28; last update: 2003-12-21"
     AUTHOR_="Dawid Michalczyk <dm@eonworks.com>"
        URL_="www.comp.eonworks.com"
   CATEGORY_="compress"
   PLATFORM_="Linux"
      SHELL_="bash"
 DISTRIBUTE_="yes"

# #############################################################################
# This program is distributed under the terms of the GNU General Public License

usage () {

echo >&2 "$NAME_ $VERSION_ - $PURPOSE_
Usage: $SYNOPSIS_
Requires: $REQUIRES_
Options:
     -r, remove the zip file after extraction
     -v, verbose
     -h, usage and options (help)
     -l, see this script"
    exit 2
}

# args check
[ $# -eq 0 ] && { echo missing argument, type $NAME_ -h for help; exit 2; }

# var initializing
rm_zip=
verbose=

# option and argument handling
while getopts vhlr options; do

    case $options in
        r) rm_zip=on ;;
        v) verbose=on ;;
        h) usage ;;
        l) more $0; exit 2 ;;
       \?) echo invalid argument, type $NAME_ -h for help; exit 2 ;;
    esac

done
shift $(( $OPTIND - 1 ))
    
# main script execution
for a in "$@"; do

    case $a in

        *.[zZ][iI][pP])
            [ -d ${a%.*} ] && echo "${NAME_}: skipping ${a%.*} such dir already exist, cannot extract to it" && continue
            mkdir ${a%.*}
            [[ $verbose ]] && echo "${NAME_}: extracting "$a
            unzip -qq $a -d ${a%.*}
            [[ $rm_zip ]] && rm -f -- $a
            ;;

        *) echo "${NAME_}: $a not a zip file or lacks a zip suffix" ;;

    esac

done