magic.add

压缩小工具,其中有压缩原代码请大家多指教

#!/bin/sh
# This simple script adds entry to /usr/lib/magic
echo -n "Looking for magic file ... "

if [ x$1 != x ] ; then
	BUILDROOT=$1
fi

if [ -e "$BUILDROOT/usr/lib/magic" ] ; then
 MFILE="$BUILDROOT/usr/lib/magic"
elif [ -e "$BUILDROOT/etc/magic" ] ; then
 MFILE="$BUILDROOT/etc/magic"
else
 echo " not found."
 exit 0
fi

echo "$MFILE"

if [ -z "`grep END_OF_MSCOMPRESS $MFILE`" ] ; then
  cat magic.mscompress >>$MFILE
else
  echo Entry already present
fi