Create a Tar with date stamp

[Alvin_15]

I am trying to two things actually.
I want to be a able to tar and then gz a file but I want to add a date stamp to the end of my file.
Exmp: fred.tar.gz.*Date* (day,month,year)

Thanks for the help!!

[Steven E. Protter]

Download and install this:

http://www.hpux.ws/merijn/caljd.sh

It provides utility for getting dates into variables quite easily. Also calculations.

Install it and call it directly in your script that creats the tar

Then

filename="filename${day}${month}${year}.tar"

tar cvf $filename *
gzip $filename

Done.

SEP

[A. Clay Stephenson · Accepted solution]

I would suggest that you add the date BEFORE the .gz suffix so that gunzip sees the correct suffix.

FNAME=fred.tar
tar cvf ${FNAME} . # create the tar archive
DT=$(date '+%d%m%Y')
NEW_FNAME="${$NAME}.${DT}"
gzip ${NEW_FNAME}


as a Plan B you could leverage the -S option of the gzip comand but agin I would put the date before the .gz

DT=$(date '+%d%m%Y')
SUF=".${DT}.gz"
gzip -S "${SUF}" fred.tar

[Rick Garland]

To make the tarball;
tar -cvf *
(assuming you are in correct directory)

gzip the tarball;
gzip

move the file to new name with date stamp;
mv .gz .gz.`date +%d%m%Y`

Can be done in fewer steps but this is the basic

[Geoff Wild]

mv fred.tar.gz fred.tar.gz.`date +%d%m%Y`


Rgds...Geoff

[Alvin_15]

I appreciate all the help on this.
I did make one change. The end result that I am looking for is as follows:
05pIBM.date.tar

then I will do a gzip to make it:
05pIBM.date.tar.gz

Here is my current script which is not working. Thanks again for your feedback.

#!/bin/sh

$date=$(date '+%d%m%Y')

# create tarfile for /opt/IBM/05ptar

tar -cvf /tmp/05pIBM.$date.tar /opt/IBM

# end script

My file ends up looking like this:
05pIBM..tar

[Geoff Wild]

Uh...remove the $ from date:

date=$(date '+%d%m%Y')

Rgds...geoff

[A. Clay Stephenson]

This ain't Perl:

your:
$date=$(date '+%d%m%Y')
should be:
DT=$(date '+%d%m%Y') # no dollar sign and it ain't too smart to use a variable name (date) that could easily be confused with a common command.

Also, it's wise to always enclose shell variables in {}'s. Most of the time they are not required to avoid parsing errors but sometimes they are. I hate code that branches (even inside my head) so I always use them.

[Alvin_15]

Thank You all for your help on this !!
As you can see I am a major novice at this whole scripting thing.

My next piece to this puzzle is:
I am doing a scp of this file to another server and placing it in /adv/adm/backups.

I need to then create another script to remove the third archive in the /adv/adm/backups folder.
05pIBM.25102005.tar
05pIBM.26102005.tar
05pIBM.27102005.tar

I have tested my scp and that works great. Just not sure how to remove that first one and only leave two in the folder each day.
Thanks!!

[Geoff Wild]

2 ways - you could write some complicated code with perl to figure out the file to be removed....or easy way - just do a find command on the remote system:


#!/bin/sh
# Script to remove old backup jobs
find /adv/adm/backups -name '05pIBM.*' -mtime +3 -exec rm {} \; >/tmp/rmoldbakup.log


Run from cron each day...

Rgds...geoff

[Alvin_15]

Thanks Once again !!!

You have really helped me out a ton..

Have great day !!

[Alvin_15]

Thanks to the help I received. I able to close this string.

Thanks to all...