Attachment 11685 Details for Bug 26745 – onsync script for qa iso testers

onsync script for qa iso testers

onesync (text/plain), 10.49 KB, created by Dave Hodgins on 2020-06-08 20:46:24 CEST

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Creator: Dave Hodgins

Created: 2020-06-08 20:46:24 CEST

Size: 10.49 KB

patch

obsolete

>#!/bin/bash
># An attempt at a generic ISO rsync update script which copes with file re-naming
># onesync -h | -i | DIR
># -h	Ouput command help
># -i	Just list remote ISO directory
># DIR	The local ISO directory to synchronise
>#		. for the current directory
>#		If it does not exist, offer to create it
>
># DEFINE THIS AS NECESSARY & WHEN IT CHANGES
>RSYNC_PASSWORD="munged" ### <<< UPDATE THIS <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<!!!!!!!!!!!!!!!!
>export RSYNC_PASSWORD
>
># THE FOLLOWING ITEMS *COULD* CHANGE but are normally constant
># rsync user
>USER="isoqa"
># ISOs host/source directory
>SOURCE="bcd.mageia.org/isos"
>
>USAGE="Usage: onesync -h | -i | DIR"
>
># Check that we have just 1 parameter
>if [ $# -ne 1 ]
>then echo $USAGE ; exit ; fi
>
># http://alvinalexander.com/linux-unix/shell-script-command-line-arguments-linux-unix
># Look for -h help or -i info option
>while getopts :hi OPT
>do
>
># >>>>>>>>
>
>case $OPT in
># -h for Help, output that and exit
>	h)
>	echo $USAGE
>	echo -e "-h \t Ouput this help"
>	echo -e "-i \t List a remote directory"
>	echo -e "DIR \t The local ISO directory to synchronise"
>	echo -e "\t '.' for the current directory"
>	echo -e "\t If the directory does not exist, it will be optionally created"
>	echo
>	echo -e "\t Examples:"
>	echo onesync -h
>	echo " shows this help text"
>	echo
>	echo onesync -i
>	echo " enables listing a chosen remote ISO"
>	echo
>	echo onesync .
>	echo " synchronises the [ISO] directory it is issued from"
>	echo
>	echo "onesync Mageia/iso/Classic64        [The directory exists]"
>	echo " synchronises the existing [ISO] directory Mageia/iso/Classic64/"
>	echo
>	echo "onesync Mageia/iso/Classic64        [The directory does not yet exist]"
>	echo " optionally creates & primes the [ISO] directory Mageia/iso/Classic64/"
>	echo
>	exit
>	;;
>
># -i for just remote directory listing simply set INFO flag
>	i)
>	INFO=1
>	;;
>
>	*)
>	echo Invalid parameter
>	exit
>esac
>
># <<<<<<<<
>
>done
>
>echo
>
># If called just for info, skip most parts & exit early
>
>if [ $INFO ]
>then
>	echo "This script lists the contents of a chosen ISO on the server"
>else
>
># Real synchronisation
># >>>>>>>> This part skipped for info-only; should all be indented
>
>echo "This script primes or updates a single ISO directory"
>echo
>
># Save where we are called from, to return to at the end if necessary
>FROM=`pwd`
># Get the local directory parameter. '.' means *this* directory
>if [ $1 != '.' ]
>then
>	DIR=$1
># Check the directory exists; if not, offer to create it
>	if [ ! -d $1 ]
>	then
>		echo The specified directory $1 does not exist.
>		echo -n "<Enter> to create it, anything else to quit: "
>		read REPLY
># $REPLY needs to be quoted to recognise a null return
># Continue only if asked to do so, else quit
>		if [ "$REPLY" != "" ] ; then exit ; fi
># Create the local ISO directory
>		mkdir $1
>	fi
># Go to the given directory (if it was not '.')
>	cd $DIR
>fi
>
># Temporary file to hold list of files in the ISO directory
>ISOFILES=/tmp/ISOfiles`date +%H%M%S`
>
># Confirm that we are in the correct local directory (which can have any name)
>HERE=`pwd`
>echo "You should now be in the local ISO directory you want to update:"
>echo -e "$HERE"
>
># $5=size without commas, $6=coerced yyyy/mm/dd, $7=coerced hh:mm, $8=filename
>ls -l --time-style='+%Y/%m/%d %H:%M' | awk 'NR>1 {printf "%10s %s %s %s\n", $5, $6, $7, $8}'
>
>echo -n "If this is correct, <Enter> to continue; anything else to quit: "
>read REPLY
># $REPLY needs to be quoted to recognise a null return
># Continue only if asked to do so, else quit
>if [ "$REPLY" != "" ] ; then exit ; fi
>
># <<<<<<<< End of part skipped for info-only; should have been indented
>
>fi
>
># Start of part shared by info
>
>echo
># First test the rsync password. Grep should return 0 for 'found'
>rsync --list-only rsync://${USER}@$SOURCE/ 2>&1 | grep 'auth failed'
>if [ $? -eq 0 ]
>then
>	echo The current script rsync password \'$RSYNC_PASSWORD\' seems to be wrong.
>	echo Please update it in the onesync script
>	exit
>else
>	echo The current script rsync password \'$RSYNC_PASSWORD\' seems OK
>fi
>
># Read current release umbrella directories
>echo
>echo "These are the current releases; choose the one you want:"
>select PHASE in `rsync --list-only rsync://${USER}@$SOURCE/ | awk 'NR>1 {print $5}'`
>do
># A null reply automatically repeats the prompt
># Otherwise, check for out-of-range reply, PHASE = NUL; abort if so.
>	if [ "$PHASE" == "" ] ; then exit ; fi
>	echo -e "\t Chosen release is: $PHASE"
>	break
>done
># In case they responded ^D (EOF) which exits the do loop above to here
>if [ "$PHASE" == "" ] ; then exit ; fi
>
># Read current ISO directories for chosen release
>echo "These are its current ISOs; choose CAREFULLY:"
>select ISODIR in `rsync --list-only rsync://${USER}@$SOURCE/$PHASE/ | awk 'NR>1 {print $5}'`
>do
># A null reply automatically repeats the prompt
># Otherwise, check for out-of-range reply, ISODIR = NUL; abort if so.
>	if [ "$ISODIR" == "" ] ; then exit ; fi
>	echo -e "\t Chosen ISO is: $ISODIR"
>	echo Its current content:
>	break
>done
># In case they responded ^D (EOF) which exits the do loop above to here
>if [ "$ISODIR" == "" ] ; then exit ; fi
>
># Display for info the remote ISO directory contents (skip directory . line)
># The tr removes commas (from and only in file size)
># $2=size without commas, $3=yyyy/mm/dd, $4=hh:mm:ss cut seconds, $5=filename
>
>rsync --list-only rsync://${USER}@$SOURCE/$PHASE/$ISODIR/ \
>	| tr -d ',' \
>	| awk 'NR>1 {printf "%10s %s %.5s %s\n", $2, $3, $4, $5}'
>
># End of part shared by info; just exit
>
>if [ $INFO ] ;	then echo; exit;	fi
>
>echo -n "Does it look OK? <Enter> to confirm, anything else to quit: "
>read REPLY
># $REPLY needs to be quoted to recognise a null return
># Continue only if asked to do so, else quit
>if [ "$REPLY" != "" ] ; then exit ; fi
>
># Record filenames in the chosen ISO directory to compare with their local names
>rsync --list-only rsync://${USER}@$SOURCE/$PHASE/$ISODIR/ \
>	| awk 'NR>1 {print $5}' > $ISOFILES
>
>echo
>echo "Each filename in the remote directory is checked against its"
>echo "equivalent (based on its extension) in this local one."
># THE FILENAME CONSISTENCY ALGORITHM REQUIRES ONLY 1 FILE OF EACH EXTENSION
>echo If a discrepancy is found, you will be asked to confirm renaming the local copy.
>echo This is to cope with release filename changes.
>echo No local equivalent implies a virgin download.
>echo
>
># Overall record of any local filename changes
># FLAG		Some re-naming to do
># ALL		Rename all local files
># ERR		>1 file of same extension
>
># Work through the list of remote filenames
>for F in `cat $ISOFILES`
>do
># The remote filename
>	REMOTE=$F
># If the remote filename already exists locally, skip it
>	if [ -f $REMOTE ] ; then echo $REMOTE will be updated ; continue ; fi
>
># We did not find an exact match; find the current equivalent local file based on the extension
># BASE=${F%.*}
># Its extension
>	EXTN=${F##*.}
># See if just 1 local file of same extension exists to rename
>	COUNT=`ls *.$EXTN 2>/dev/null | wc -l`
># If no equivalent local file, none to rename, it will be downloaded
>	if [ $COUNT -eq 0 ] ; then echo $REMOTE will be downloaded ; continue ; fi
># The equivalent local filename(s)
>	LOCAL=`ls *.$EXTN`
># If there is >1 filename of this extension, complain & skip them
>	if [ $COUNT -gt 1 ]
>	then
>		ERR=1
>		echo There is more than one local file of type .$EXTN
>		echo -e "The following local files are NOT renamed: \n $LOCAL"
>		continue
>	fi
>
># We have a filename which can & should be brought up-to-date
># Rename the local file to be the same as its remote (extension) equivalent
># Only query them if not already asked to do all files.
>	if [ $ALL ]
># They want all renamed without confirmation
>	then
>		echo -e "Renaming for update local file \n $LOCAL to \n $REMOTE"
>	else
># Ask their opinion
>		FLAG=1
>		echo
>		echo -e "About to rename for update local file \n $LOCAL \t to \n $REMOTE"
>		echo "<Enter> alone to rename ALL files without asking again,"
>		echo " r|R to rename just THIS file,"
>		echo -n " anything else to leave this filename as it is: "
>		read REPLY
>
># Rename only if asked to do so, otherwise skip this file
>		# $REPLY needs to be quoted to recognise a null return
>		if [ "$REPLY" == "" ]
># Re-naming without further confirmation
>		then	ALL=1
>		elif [ "$REPLY" != "r" -a "$REPLY" != "R" ]
># If REPLY not NUL and not r|R , skip this file & continue loop
>		then
>			echo "Leaving $LOCAL as it is"
>			continue
>		fi
>	fi
># Update this local filename to its remote equivalent
>	mv $LOCAL $REMOTE
>done
>
># Can remove this temporary file
>rm $ISOFILES
>
>echo
># If there was any anomaly, prompt to continue
>if [ $FLAG ]
>then
>	echo "Some ISO filenames were updated"
>	echo "These are the new local ISO file(names)s: review them"
>	ls -1
>elif [ $ERR ]
>then
>	echo "There were some duplicate extensions"
>else
># Remote = local filenames.
>	echo "The local & remote ISO filenames are consistent."
>fi
>
># Offer last chance to quit before rsync-ing
># Allow the user to continue explicitly, otherwise quit
>echo -n "OK to continue? <Enter> if yes, anything else to quit: "
>read REPLY
># $REPLY needs to be quoted to cope with a null return
>if [ "$REPLY" != "" ] ; then exit ; fi
>
># At last do the actual rsync update of the selected ISO directory
># The trailing source / = *contents* of the directory
># and destination . = *this* directory, are vital
>echo
>echo -e "Synchronising this local ISO directory with \n $ISODIR"
>echo This can take hours, but can be re-started efficiently if it breaks.
>echo
>echo `date +%T` rsync starting
>echo "rsync -avHP rsync://${USER}@$SOURCE/$PHASE/$ISODIR/ ."
>rsync -avHP rsync://${USER}@$SOURCE/$PHASE/$ISODIR/ .
>echo `date +%T` rsync finished
>
># Do checksums, md5 & sha1
>echo
>echo Doing checksums - patience.
>
># add additional checksum types to the following line, plus an equivalent case
>for CKS in md5
>do
>	if [ -f *.$CKS ]
>	then
># A checksum file exists
>		echo -n "$CKS: "
># The command outputs OK or failure msgs; *.CKS is linked to the *.iso file
># If it is not OK, ouptut the checksum file for info
>		case "$CKS" in
>			md5)
>				md5sum -c *.md5
>				;;
>#			sha512)
>#				sha512sum -c *.sha1
>#				;;
>		esac
># Check for bad result code = checksum failure
>		if [ $? -ne 0 ]
>		then
>			echo -e "\a Supplied $CKS checksum = `cat *.$CKS | awk '{print $1}'`"
>		fi
>	else
># Expected checksum file missing
>		echo -e "\a Warning! No $CKS checksum file"
>	fi
>done
>
>echo
>echo "You have just rsynced this directory $HERE with"
>echo " $PHASE/$ISODIR"
>
>if [ -f DATE.txt ]
>then
>	echo -n " DATE.txt = "
>	cat DATE.txt
>else
>	echo -e "\a Warning! No DATE.txt file"
>fi
>echo The essential timestamp is:
>ls -l *.iso | awk '{print $9, $6, $7, $8}'
>
>echo
># If a different directory parameter was given, return to where we were called from
>if [ $DIR ]
>then cd $FROM ; echo Returned to `pwd` ; fi
>

#!/bin/bash
# An attempt at a generic ISO rsync update script which copes with file re-naming
# onesync -h | -i | DIR
# -h	Ouput command help
# -i	Just list remote ISO directory
# DIR	The local ISO directory to synchronise
#		. for the current directory
#		If it does not exist, offer to create it

# DEFINE THIS AS NECESSARY & WHEN IT CHANGES
RSYNC_PASSWORD="munged" ### <<< UPDATE THIS <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<!!!!!!!!!!!!!!!!
export RSYNC_PASSWORD

# THE FOLLOWING ITEMS *COULD* CHANGE but are normally constant
# rsync user
USER="isoqa"
# ISOs host/source directory
SOURCE="bcd.mageia.org/isos"

USAGE="Usage: onesync -h | -i | DIR"

# Check that we have just 1 parameter
if [ $# -ne 1 ]
then echo $USAGE ; exit ; fi

# http://alvinalexander.com/linux-unix/shell-script-command-line-arguments-linux-unix
# Look for -h help or -i info option
while getopts :hi OPT
do

# >>>>>>>>

case $OPT in
# -h for Help, output that and exit
	h)
	echo $USAGE
	echo -e "-h \t Ouput this help"
	echo -e "-i \t List a remote directory"
	echo -e "DIR \t The local ISO directory to synchronise"
	echo -e "\t '.' for the current directory"
	echo -e "\t If the directory does not exist, it will be optionally created"
	echo
	echo -e "\t Examples:"
	echo onesync -h
	echo " shows this help text"
	echo
	echo onesync -i
	echo " enables listing a chosen remote ISO"
	echo
	echo onesync .
	echo " synchronises the [ISO] directory it is issued from"
	echo
	echo "onesync Mageia/iso/Classic64        [The directory exists]"
	echo " synchronises the existing [ISO] directory Mageia/iso/Classic64/"
	echo
	echo "onesync Mageia/iso/Classic64        [The directory does not yet exist]"
	echo " optionally creates & primes the [ISO] directory Mageia/iso/Classic64/"
	echo
	exit
	;;

# -i for just remote directory listing simply set INFO flag
	i)
	INFO=1
	;;

	*)
	echo Invalid parameter
	exit
esac

# <<<<<<<<

done

echo

# If called just for info, skip most parts & exit early

if [ $INFO ]
then
	echo "This script lists the contents of a chosen ISO on the server"
else

# Real synchronisation
# >>>>>>>> This part skipped for info-only; should all be indented

echo "This script primes or updates a single ISO directory"
echo

# Save where we are called from, to return to at the end if necessary
FROM=`pwd`
# Get the local directory parameter. '.' means *this* directory
if [ $1 != '.' ]
then
	DIR=$1
# Check the directory exists; if not, offer to create it
	if [ ! -d $1 ]
	then
		echo The specified directory $1 does not exist.
		echo -n "<Enter> to create it, anything else to quit: "
		read REPLY
# $REPLY needs to be quoted to recognise a null return
# Continue only if asked to do so, else quit
		if [ "$REPLY" != "" ] ; then exit ; fi
# Create the local ISO directory
		mkdir $1
	fi
# Go to the given directory (if it was not '.')
	cd $DIR
fi

# Temporary file to hold list of files in the ISO directory
ISOFILES=/tmp/ISOfiles`date +%H%M%S`

# Confirm that we are in the correct local directory (which can have any name)
HERE=`pwd`
echo "You should now be in the local ISO directory you want to update:"
echo -e "$HERE"

# $5=size without commas, $6=coerced yyyy/mm/dd, $7=coerced hh:mm, $8=filename
ls -l --time-style='+%Y/%m/%d %H:%M' | awk 'NR>1 {printf "%10s %s %s %s\n", $5, $6, $7, $8}'

echo -n "If this is correct, <Enter> to continue; anything else to quit: "
read REPLY
# $REPLY needs to be quoted to recognise a null return
# Continue only if asked to do so, else quit
if [ "$REPLY" != "" ] ; then exit ; fi

# <<<<<<<< End of part skipped for info-only; should have been indented

fi

# Start of part shared by info

echo
# First test the rsync password. Grep should return 0 for 'found'
rsync --list-only rsync://${USER}@$SOURCE/ 2>&1 | grep 'auth failed'
if [ $? -eq 0 ]
then
	echo The current script rsync password \'$RSYNC_PASSWORD\' seems to be wrong.
	echo Please update it in the onesync script
	exit
else
	echo The current script rsync password \'$RSYNC_PASSWORD\' seems OK
fi

# Read current release umbrella directories
echo
echo "These are the current releases; choose the one you want:"
select PHASE in `rsync --list-only rsync://${USER}@$SOURCE/ | awk 'NR>1 {print $5}'`
do
# A null reply automatically repeats the prompt
# Otherwise, check for out-of-range reply, PHASE = NUL; abort if so.
	if [ "$PHASE" == "" ] ; then exit ; fi
	echo -e "\t Chosen release is: $PHASE"
	break
done
# In case they responded ^D (EOF) which exits the do loop above to here
if [ "$PHASE" == "" ] ; then exit ; fi

# Read current ISO directories for chosen release
echo "These are its current ISOs; choose CAREFULLY:"
select ISODIR in `rsync --list-only rsync://${USER}@$SOURCE/$PHASE/ | awk 'NR>1 {print $5}'`
do
# A null reply automatically repeats the prompt
# Otherwise, check for out-of-range reply, ISODIR = NUL; abort if so.
	if [ "$ISODIR" == "" ] ; then exit ; fi
	echo -e "\t Chosen ISO is: $ISODIR"
	echo Its current content:
	break
done
# In case they responded ^D (EOF) which exits the do loop above to here
if [ "$ISODIR" == "" ] ; then exit ; fi

# Display for info the remote ISO directory contents (skip directory . line)
# The tr removes commas (from and only in file size)
# $2=size without commas, $3=yyyy/mm/dd, $4=hh:mm:ss cut seconds, $5=filename

rsync --list-only rsync://${USER}@$SOURCE/$PHASE/$ISODIR/ \
	| tr -d ',' \
	| awk 'NR>1 {printf "%10s %s %.5s %s\n", $2, $3, $4, $5}'

# End of part shared by info; just exit

if [ $INFO ] ;	then echo; exit;	fi

echo -n "Does it look OK? <Enter> to confirm, anything else to quit: "
read REPLY
# $REPLY needs to be quoted to recognise a null return
# Continue only if asked to do so, else quit
if [ "$REPLY" != "" ] ; then exit ; fi

# Record filenames in the chosen ISO directory to compare with their local names
rsync --list-only rsync://${USER}@$SOURCE/$PHASE/$ISODIR/ \
	| awk 'NR>1 {print $5}' > $ISOFILES

echo
echo "Each filename in the remote directory is checked against its"
echo "equivalent (based on its extension) in this local one."
# THE FILENAME CONSISTENCY ALGORITHM REQUIRES ONLY 1 FILE OF EACH EXTENSION
echo If a discrepancy is found, you will be asked to confirm renaming the local copy.
echo This is to cope with release filename changes.
echo No local equivalent implies a virgin download.
echo

# Overall record of any local filename changes
# FLAG		Some re-naming to do
# ALL		Rename all local files
# ERR		>1 file of same extension

# Work through the list of remote filenames
for F in `cat $ISOFILES`
do
# The remote filename
	REMOTE=$F
# If the remote filename already exists locally, skip it
	if [ -f $REMOTE ] ; then echo $REMOTE will be updated ; continue ; fi

# We did not find an exact match; find the current equivalent local file based on the extension
# BASE=${F%.*}
# Its extension
	EXTN=${F##*.}
# See if just 1 local file of same extension exists to rename
	COUNT=`ls *.$EXTN 2>/dev/null | wc -l`
# If no equivalent local file, none to rename, it will be downloaded
	if [ $COUNT -eq 0 ] ; then echo $REMOTE will be downloaded ; continue ; fi
# The equivalent local filename(s)
	LOCAL=`ls *.$EXTN`
# If there is >1 filename of this extension, complain & skip them
	if [ $COUNT -gt 1 ]
	then
		ERR=1
		echo There is more than one local file of type .$EXTN
		echo -e "The following local files are NOT renamed: \n $LOCAL"
		continue
	fi

# We have a filename which can & should be brought up-to-date
# Rename the local file to be the same as its remote (extension) equivalent
# Only query them if not already asked to do all files.
	if [ $ALL ]
# They want all renamed without confirmation
	then
		echo -e "Renaming for update local file \n $LOCAL to \n $REMOTE"
	else
# Ask their opinion
		FLAG=1
		echo
		echo -e "About to rename for update local file \n $LOCAL \t to \n $REMOTE"
		echo "<Enter> alone to rename ALL files without asking again,"
		echo " r|R to rename just THIS file,"
		echo -n " anything else to leave this filename as it is: "
		read REPLY

# Rename only if asked to do so, otherwise skip this file
		# $REPLY needs to be quoted to recognise a null return
		if [ "$REPLY" == "" ]
# Re-naming without further confirmation
		then	ALL=1
		elif [ "$REPLY" != "r" -a "$REPLY" != "R" ]
# If REPLY not NUL and not r|R , skip this file & continue loop
		then
			echo "Leaving $LOCAL as it is"
			continue
		fi
	fi
# Update this local filename to its remote equivalent
	mv $LOCAL $REMOTE
done

# Can remove this temporary file
rm $ISOFILES

echo
# If there was any anomaly, prompt to continue
if [ $FLAG ]
then
	echo "Some ISO filenames were updated"
	echo "These are the new local ISO file(names)s: review them"
	ls -1
elif [ $ERR ]
then
	echo "There were some duplicate extensions"
else
# Remote = local filenames.
	echo "The local & remote ISO filenames are consistent."
fi

# Offer last chance to quit before rsync-ing
# Allow the user to continue explicitly, otherwise quit
echo -n "OK to continue? <Enter> if yes, anything else to quit: "
read REPLY
# $REPLY needs to be quoted to cope with a null return
if [ "$REPLY" != "" ] ; then exit ; fi

# At last do the actual rsync update of the selected ISO directory
# The trailing source / = *contents* of the directory
# and destination . = *this* directory, are vital
echo
echo -e "Synchronising this local ISO directory with \n $ISODIR"
echo This can take hours, but can be re-started efficiently if it breaks.
echo
echo `date +%T` rsync starting
echo "rsync -avHP rsync://${USER}@$SOURCE/$PHASE/$ISODIR/ ."
rsync -avHP rsync://${USER}@$SOURCE/$PHASE/$ISODIR/ .
echo `date +%T` rsync finished

# Do checksums, md5 & sha1
echo
echo Doing checksums - patience.

# add additional checksum types to the following line, plus an equivalent case
for CKS in md5
do
	if [ -f *.$CKS ]
	then
# A checksum file exists
		echo -n "$CKS: "
# The command outputs OK or failure msgs; *.CKS is linked to the *.iso file
# If it is not OK, ouptut the checksum file for info
		case "$CKS" in
			md5)
				md5sum -c *.md5
				;;
#			sha512)
#				sha512sum -c *.sha1
#				;;
		esac
# Check for bad result code = checksum failure
		if [ $? -ne 0 ]
		then
			echo -e "\a Supplied $CKS checksum = `cat *.$CKS | awk '{print $1}'`"
		fi
	else
# Expected checksum file missing
		echo -e "\a Warning! No $CKS checksum file"
	fi
done

echo
echo "You have just rsynced this directory $HERE with"
echo " $PHASE/$ISODIR"

if [ -f DATE.txt ]
then
	echo -n " DATE.txt = "
	cat DATE.txt
else
	echo -e "\a Warning! No DATE.txt file"
fi
echo The essential timestamp is:
ls -l *.iso | awk '{print $9, $6, $7, $8}'

echo
# If a different directory parameter was given, return to where we were called from
if [ $DIR ]
then cd $FROM ; echo Returned to `pwd` ; fi

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Attachments on bug 26745: 11685