Listing 7

#! /bin/bash -
# FILENAME: userunzip
# DESCRIPTION: Moves to user's home directory and unzips any zipfile
# to public_html directory. Useful for ftp-only users which are allowed
# to put their zipfile in their homedir and have them exploded without
# manual intervention.
#
# USAGE: userunzip [user]
#
# LABEN S.p.A. - 10-dec-1997
#
# HISTORY:
# 0.0 Luca Salvadori <salvadori.l@laben.it> 10-dec-1997
# 	- Basic functions and behaviour
#
#
######################### M A I N  P R O G R A M #########################

# Initialization of local variables
UNZIP=/usr/bin/unzip            # Set executable, just in case
USERNAME=${1:-$LOGNAME}         # Assign default user if needed
#HOMEDIR=~$USERNAME             # Assign home directory
HOMEDIR=`eval echo ~$USERNAME`  # Assign home directory
TARGETDIR=$HOMEDIR/public_html  # Target directory to explode zipfiles
ZIPFILE=*.zip                   # Default zipfile to search for
EXITCODE=1                      # Set exitcode to 1 to prepare for errors
DISKSPACE=5000                  # Minimum free space (KBytes) on disk to proceed
DISK=/dev/hdb1                     # Disk to search space on

# Here begins the real stuff
# Move to home directory: "eval" it to allow expansion
eval cd $HOMEDIR 2>/dev/null || { echo "ERROR=1 - Directory $HOMEDIR does not exist" 1>&2 ; exit 1 }
cd $TARGETDIR 2>/dev/null || { echo "ERROR=1 - Directory $TARGETDIR does not exist" 1>&2 ; exit 1 }

#for zipfile in `eval ls $HOMEDIR/$ZIPFILE`
for zipfile in `find $HOMEDIR -maxdepth 1 -name "$ZIPFILE"`
do
	echo "Processing $zipfile..."
	if [ -f $zipfile ]
	then
		EXITCODE=0
		# Rename zipfile
		mv $zipfile $zipfile.$$
		# Cleanup previous issue
		find r_* -name \*.jpg -exec rm \{\} \;
		# Loop until sufficient diskspace is available
		FREEDISK=`df|grep "$DISK"|tr -s " " | cut -d" " -f4`
		while [ $FREEDISK -lt $DISKSPACE ]
		do
			sleep 60
		done
		$UNZIP -u -o $zipfile.$$ && { 
			rm $zipfile.$$ 
			# Linking index.htm to index.html, just in case
			for dir in `find $TARGETDIR -type d`
			do
				cd $dir
				[ -f index.html -a ! -L index.html ] && ln -v -s index.htm index.html
				cd $TARGETDIR
			done
			echo "Done at `date`." }
		[ $? -ne 0 ] && { echo "Failed. $zipfile is not a zip file or is corrupted." ; EXITCODE=1 }
	else
		echo "Failed. $zipfile does not exist."
		EXITCODE=1
	fi
done
[ -f $zipfile.$$ ] && mv $zipfile.$$ $zipfile
exit $EXITCODE

##################### E N D  O F  M A I N  P R O G R A M ###################