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kali-tar2rootfs.in
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kali-tar2rootfs.in
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#!/bin/bash
m4_include(utils)
usage() {
cat <<EOF
usage: ${0##*/} image destination
-h Print this help message
EOF
}
while getopts ':h' flag; do
case $flag in
h)
usage
exit 0
;;
:)
die '%s: option requires an argument -- '\''%s'\' "${0##*/}" "$OPTARG"
;;
?)
die '%s: invalid option -- '\''%s'\' "${0##*/}" "$OPTARG"
;;
esac
done
shift $(( OPTIND - 1 ))
if [ "$#" -ne 2 ]; then
die "%s: invalid parameters" "${0##*/}"
fi
image=$(realpath "$1" 2>/dev/null)
destination=$(realpath "$2" 2>/dev/null)
compression=${image##*.}
taropt=''
case $compression in
zst | zstd)
taropt='--zstd'
;;
bz2 | bzip2)
taropt='--bzip2'
;;
xz)
taropt='--xz'
;;
lz)
taropt='--lzip'
;;
lzma)
taropt='--lzma'
;;
lzop)
taropt='--lzop'
;;
gz)
taropt='--gzip'
;;
esac
(( EUID == 0 )) || die 'This script must be run with root privileges'
previouspwd=$PWD
mkdir -p $destination
cd $destination
tar $taropt -xhf $image || die '%s: cannot extract archive to given destination' "${0##*/}"
cd $previouspwd