topic Re: find and tar in Operating System - Linux

find and tar

Om prakash_1 — Thu, 22 Mar 2007 04:43:20 GMT

How can i use find with tar command. and in case i want to tar files for one particular date how can i do that. as the file names are being different.

Re: find and tar

Ivan Ferreira — Thu, 22 Mar 2007 05:27:14 GMT

You can use something like this:

tar cvf /dev/st0 $(find /path -mtime +30)

This will find the files older than 30 days and send it to tape. You can play with the find command as you want.

Re: find and tar

Hemmetter — Thu, 22 Mar 2007 05:27:28 GMT

Hi

try
# touch -t 0703200000 starttimefile
# touch -t 0703220000 stoptimefile

# tar cvf arc.tar $(find /path -type f $ -newer starttimefile -a ! -newer stoptimefile $ )

#if you have lots of files you may try:

#find /path -type f $ -newer starttimefile -a ! -newer stoptimefile $ | xargs tar rvf arc.tar

rgds
HGH

Re: find and tar

Om prakash_1 — Thu, 22 Mar 2007 05:57:06 GMT

when i use
find tmp -type f -exec grep "tmp" {}\;

i get the this error.

find: missing argument to `-exec'

Re: find and tar

Om prakash_1 — Thu, 22 Mar 2007 06:00:44 GMT

well this works greatly... but i was wondering how can i specify a date for eg. if i want to archive all the files which were created on say Feb 23. like using mtime or something like that.

Re: find and tar

Ivan Ferreira — Thu, 22 Mar 2007 06:04:52 GMT

Yes, as described in the Hemmetter solution, you can create a file with a "baseline date" with the touch command, and use that file as reference for your search.

Re: find and tar

Stuart Browne — Thu, 22 Mar 2007 18:40:51 GMT

The method I'd use (instead of xargs) is to:

find . | tar Tcvf - file.tar

The 'T' coupled with '-' takes the file-list from STDIN. This allows a more dynamic method (and not limited to command-line size) of creating an arcive.

That, or use 'cpio'.. ;)

Re: find and tar

Mike Stroyan — Fri, 23 Mar 2007 18:16:22 GMT

You should have a look at the pax command.
It can read and write tar format.
But it is also very good at filtering which files will be written based on file names and modification times.

pax -w -T 02230000,02240000 /tmp > tmp.tar