topic Re: Finding files in Operating System - HP-UX

Finding files

akarayil — Thu, 01 May 2008 08:42:17 GMT

Dear Experts,

If I want to find the files which are modified (or created) 6 hours ago which option I can use along with find cmd.
OS: HPUX 11.23

In Linux, there is an option mmin, that works fine. This is not working in HPUX.

Do you have any solution?

regards

Re: Finding files

Dennis Handly — Thu, 01 May 2008 09:00:42 GMT

That option isn't available, only -mtime for days. You need to create a reference file and use -newer. See this thread:
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1227469

Re: Finding files

Victor Fridyev — Thu, 01 May 2008 09:09:17 GMT

Hi,

You can play with the touch command.

Create a file with time stamp 6 hours before current time :
touch -t YYMMDDhhmm /tmp/stamp
and run find / -newer /tmp/stamp

HTH

Re: Finding files

Jeeshan — Thu, 01 May 2008 09:46:22 GMT

Hi

You can use the sample perl scriptd to find your criteria

perl -MFile::Find -le 'find(sub{print $File::Find::name if -f $_ && -M _ <= 6/24},@ARGV)' /path

Re: Finding files

akarayil — Thu, 01 May 2008 10:12:51 GMT

Dear all
I'll give you a better picture of my problem.
I'm exporting the oracle DB every two hours. I want to keep only the last two or three backups,rest of the files should be removed. I'm using a script to automate this process, in witch I'm using mtime option to find the files. So, system keeps 12 copies of backup files and rest of the files are removed.

Regards

Re: Finding files

Rasheed Tamton — Thu, 01 May 2008 10:54:06 GMT

Hi,

You could use something like below:

find /path -exec ls -lrt {} +|head -3|xargs -i ls {}

If you have 12 files left while running the script and you want to keep 3 files from that then you have to change the head -3 to head -9

find /path -exec ls -lrt {} +|head -3|xargs -i rm {}

Just fine tune your current script using head command. Try with ls first and once you are satisfied replace it with rm.

You can also play with ls -lt and tail instead of ls-lrt and head.

Regards,
Rasheed Tamton.

Re: Finding files

Steven Schweda — Thu, 01 May 2008 13:25:13 GMT

> In Linux, there is an option mmin, that
> works fine. This is not working in HPUX.

It might work if you used GNU "find".

http://www.gnu.org/software/findutils/

You need something better than the PA-RISC
bundled C compiler to build it, but GCC can
do it, or you could probably find a pre-built
depot in the usual places.

dy # gfind --version
GNU find version 4.2.33
Built using GNU gnulib version 8e128ebf42e16c8631f971a68f188c30962818be
Features enabled: O_NOFOLLOW(enabled) LEAF_OPTIMISATION

dy # gfind . -mmin 5
./lib
./lib/regexprops

dy # uname -a
HP-UX dy B.11.11 U 9000/785 2012616114 unlimited-user license

The same holds true for most Linux tools,
which are, in fact, GNU tools (running on
GNU/Linux).

Re: Finding files

Victor Fridyev — Thu, 01 May 2008 15:41:46 GMT

Hi,

If you want to delete all, except two (or three) backups, you can run the following in the directory where your exports are located:

ls -1t export* | awk 'NR>2 {system("rm " $1)}'

HTH

Re: Finding files

akarayil — Fri, 02 May 2008 09:30:23 GMT

I thank all of you.
I got the solution from Mr.Rasheed's suggestion. I implemented the same.

Once again, Thank you very much.

with best regards