Zucca
Group: Members
Posts: 524
Joined: Feb. 2006 |
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Posted: Mar. 06 2008,17:43 |
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Well. At least zsh should be able to run bash scripts. Anyway shebang (#!/bin/bash) should make sure that the script is being run with right program.
Here's an updated version. It should be "idiotproof". ;) Also few new features. Check --help section.
| Code Sample | #!/bin/bash
# mkiso.sh
# Bash script for making CD-images out of files and/or directories easily.
# Burned images should work with old CD drives as well with new ones
# and with many OS:es too.
# _Should_ be idiot proof.
# Multiple file/directory support tested and seems to work just fine.
# Copyright Zucca. Licence: public domain.
VERSION="0.4b"
if [ -z "$1" ]
then
echo "`basename $0` ver. $VERSION"
echo "Nothing to do. --help for help." >&2
exit 1
fi
case $1 in
--help)
echo "USAGE: `basename $0` [-bz] [-nolimit] [--] <imgfile> <contents for ISO image>"
echo " -bz makes image compressed."
echo " -nolimit will allow oversized images (>330000sectors*2048b=675840000b)"
echo "If \"imgfile\" is -, then output will be directed to stdout."
echo "Adding -- will stop looking options any further."
;;
*)
function errorexit {
echo "$@" >&2
echo "Aborting..." >&2
exit 1
}
if [ -z "$2" ]
then
# Early exit: we know for sure that something is missing if there
# is less than 2 cl arguments
errorexit "Missing arguments."
elif which mkisofs &> /dev/null
then
MKISOFSOPTS="-JR -file-mode 0444 -dir-mode 0555"
USEROPTS=""
# Let's seperate options from other arguments
while true
# Rarely you need to use while true =D
do
if [ "$1" == "--" ]
then
# -- found --> stop looking for more options
shift
break
elif echo $1 | egrep "^-" &> /dev/null
then
USEROPTS="$USEROPTS$1 "
shift
else
break
fi
done
if [ -z "$1" ]
then
errorexit "Missing arguments: iso file and files to add"
elif [ -e "$1" ]
then
errorexit "File/directory $1 already exists."
elif [ -z "$2" ]
then
errorexit "Missing arguments: files to add to $1"
else
# Let's seperate output file from files/directries
ISOFILE="$1"
shift
# Specify your custom max size limit here if you like.
# Standard rule is minimium of 330 000 sectors...
# each sized 2048 bytes.
# See http://stason.org/TULARC/pc/cd-recordable/7-6-How-much-data-can-they-hold-650MB-680MB.html
# if you want to know more
let "MAXSIZE=330000*2048"
# Let's see if we need to have limited ISO size
if ! echo $USEROPTS | egrep "\-nolimit" &> /dev/null
then
TAB=$(echo -ne "\t")
TOTSIZE=$(du -bsc $@ | tail -n 1)
TOTSIZE="${TOTSIZE%$TAB*}"
test "$TOTSIZE" -gt "$MAXSIZE" && errorexit "Too much data to add. Use -nolimit to override."
fi
case $USEROPTS in
*-bz*)
# Zipping
BZIPCOMMAND="bzip2 -vzc9"
if ! which bzip2 &> /dev/null
then
errorexit "bzip2 isn't in your \$PATH or isn't installed. Do not use -bz option"
elif [ "$ISOFILE" != "-" ]
then
# To file
mkisofs $MKISOFSOPTS $@ | $BZIPCOMMAND > $ISOFILE
else
# To stdout
shift
mkisofs $MKISOFSOPTS $@ | $BZIPCOMMAND
fi
;;
*)
# No zipping
case $ISOFILE in
-)
# To stdout
mkisofs $MKISOFSOPTS $@
;;
*)
# To file
mkisofs $MKISOFSOPTS -o $ISOFILE $@
;;
esac
;;
esac
fi
else
errorexit "mkisofs isn't in your \$PATH or isn't installed."
fi
esac |
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