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Old 03-25-2006, 10:31 AM   #1
Registered: Aug 2003
Location: Belgium
Distribution: -- Slackware for servers -- Debian for desktops --
Posts: 124

Rep: Reputation: 16
silly bash question


i use fetchmail to pop my mail and would have liked to archive it each month

so i added a cron that runs each 1st of the month to backup that large mail file.

the bash script looks like this :
mariko:~# cat

date=`date +_%d_%m_%Y`
#echo $date
tar cvf /home/benjamin/mail_backup/mail"$date".tar.gz /var/mail/benjamin

the file /var/mail/benjamin is my fetchmail file that contains all the mail.

when i check the dir /home/benjamin/mail_backup/ it contains a neat file with the date an all.

problem is i cant untar it

if i execute tar zxf mail_18_02_2006.tar.gz it says :

mariko:/home/benjamin/mail_backup# tar zxf mail_18_02_2006.tar.gz

gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error exit delayed from previous errors

Hope you guys can help me out

thx in advance
Old 03-25-2006, 10:46 AM   #2
Senior Member
Registered: May 2004
Location: Leipzig/Germany
Distribution: Arch
Posts: 1,687

Rep: Reputation: 54
You created a tar archive - with no compression!
to create a gzipped tar archive - add the -z switch to your script


date=`date +_%d_%m_%Y`
#echo $date
tar cvfz /home/benjamin/mail_backup/mail"$date".tar.gz /var/mail/benjamin
file mail_18_02_2006.tar.gz
should confirm that it is a tar archive - without compression really - it's just the name which suggests that it is compressed


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