topic Re: Need shell script..... in Operating System - HP-UX

Need shell script.....

Hoang Chi Cong_1 — Fri, 22 Apr 2005 04:37:20 GMT

Goodday to all!
I am not good at shell programming...
I need to add in crontab a script to delete the old directory logfile.
For example: I just want to keep for the most 3 days current logfile directory:
drwxr-x--- 2 am users 96 Apr 17 12:00 20050410/
drwxr-x--- 2 am users 96 Apr 17 12:00 20050411/
drwxr-x--- 2 am users 96 Apr 18 12:00 20050412/
drwxr-x--- 2 am users 96 Apr 19 12:00 20050413/
drwxr-x--- 2 am users 8192 Apr 20 12:00 20050414/
drwxr-x--- 2 am users 8192 Apr 16 00:16 20050415/
drwxr-x--- 2 am users 8192 Apr 21 12:00 20050416/
drwxr-x--- 2 am users 8192 Apr 18 00:05 20050417/
drwxr-x--- 2 am users 8192 Apr 19 00:05 20050418/
drwxr-x--- 2 am users 8192 Apr 20 00:05 20050419/
drwxr-x--- 2 am users 8192 Apr 21 00:05 20050420/
drwxr-x--- 2 am users 8192 Apr 22 00:05 20050421/

In this example I just keep for these days: 21, 20, 19 and the older directory will be delete at 00:00 (by crontab)

Any helps will be much appreciated!

HoangChiCong

Re: Need shell script.....

Robert-Jan Goossens_1 — Fri, 22 Apr 2005 04:43:31 GMT

Hi,

Remove only empty directories ?

Robert-Jan

Re: Need shell script.....

Joseph Loo — Fri, 22 Apr 2005 04:47:17 GMT

hi,

a one liner will do:

# find

-atime +2 -type d -exec rm -R {} \;

regards.

Re: Need shell script.....

renarios — Fri, 22 Apr 2005 04:55:28 GMT

Hi,

I prefer using modification time above access time (Joseph's reply). If the directories are not empty, the -f option is necessary.
The syntax then would be:
find

-mtime +2 -type d -exec rm -Rf {} \;

Hope it helps you,

Renarios

Re: Need shell script.....

Hoang Chi Cong_1 — Fri, 22 Apr 2005 05:08:03 GMT

To Robert-Jan Goossens
Of course, it is not empty! It is logfile!
To Joseph Loo:
The full path: /home/ams/coms/log/
I tried with you command but nothing deleted!

Any idea?
Thanks!
Regard,
HoangChiCong

Re: Need shell script.....

Hoang Chi Cong_1 — Fri, 22 Apr 2005 05:12:10 GMT

Including empty directory!
But never empty because it contain all of the logfile as my last post!

Re: Need shell script.....

MarkSyder — Fri, 22 Apr 2005 05:29:26 GMT

Did you do as Renarios suggested and run Joseph's command with mtime rather than atime? I would expect this to work.

Mark Syder (like the drink but spelt different)

Re: Need shell script.....

Joseph Loo — Fri, 22 Apr 2005 05:33:52 GMT

oops, u should be using mtime instead:

search first
# find /home/ams/coms/log/ -type d -mtime +2 -exec ls -ld {} ;

before doing this:

# find /home/ams/coms/log/ -type d -mtime +2 -exec rm -R {} ;

regards.

Re: Need shell script.....

Hoang Chi Cong_1 — Fri, 22 Apr 2005 05:39:53 GMT

Mark,
It runs but as not I want!
Here are directory after run that command (with mtime):

drwxr-x--- 2 am users 8192 Apr 20 12:00 20050414/
drwxr-x--- 2 am users 8192 Apr 21 12:00 20050416/
drwxr-x--- 2 am users 8192 Apr 20 00:05 20050419/
drwxr-x--- 2 am users 8192 Apr 21 00:05 20050420/
drwxr-x--- 2 am users 8192 Apr 22 00:05 20050421/

thanks
HoangChiCong

Re: Need shell script.....

MarkSyder — Fri, 22 Apr 2005 05:45:52 GMT

The problem being that it deleted the directory for 19/4 and you wanted to keep that one?

I would suggest changing the mtime +2 to mtime +3 (but I expect that will have to wait till Monday to confirm it's worked).

Mark

Re: Need shell script.....

Naveej.K.A — Fri, 22 Apr 2005 05:46:53 GMT

Try this:

Find files modified between 3 and 8 days!!

# find /home/ams/coms/log/ -type d -mtime +3 -mtime +8 -exec ls -ld {} ;

# find /home/ams/coms/log/ -type d -mtime +3 -mtime +8 -exec rm -R {} ;

Regards,
Naveej

Re: Need shell script.....

Naveej.K.A — Fri, 22 Apr 2005 05:47:17 GMT

Try this:

Find files modified between 3 and 8 days!!

# find /home/ams/coms/log/ -type d -mtime +3 -mtime -8 -exec ls -ld {} ;

# find /home/ams/coms/log/ -type d -mtime +3 -mtime -8 -exec rm -R {} ;

Regards,
Naveej

Re: Need shell script.....

Robert-Jan Goossens_1 — Fri, 22 Apr 2005 06:54:17 GMT

Hi,

Download the caljd.sh (aka A. Clay Stephenson's Date Hammer) script from below link to /usr/local/bin

http://mirrors.develooper.com/hpux/#Contrib

Create a small script.

#!/usr/bin/ksh
CALJD=/usr/local/bin/caljd.sh
# set date 3 days back
RMDATE=$($CALJD -Y -s $($CALJD -p 3))
# remove old log directory
/usr/bin/rm -r /home/ams/coms/log/$RMDATE

The first time you will need to delete the older directories yourself.

Hope this helps,
Robert-Jan

Re: Need shell script.....

Geoff Wild — Fri, 22 Apr 2005 08:32:50 GMT

Okay - should be easy - as dirs are dates..

#!/bin/sh
TODAY=`date +%Y%m%d`
DAY3=`expr $TODAY - 2`

for LOG in `ls /home/ams/coms/log`
do
if [ `expr $LOG \< $DAY3` = 1 ]
then
echo $LOG
rm -rf $LOG
fi
done

Rgds...Geoff

Re: Need shell script.....

Hoang Chi Cong_1 — Fri, 22 Apr 2005 22:55:12 GMT

Thanks to everyone...
Today is weekend so that I can not check for all of your script at home.
I will answer on next monday.
Later for points....

Thanks
HoangChiCOng

Re: Need shell script.....

Hoang Chi Cong_1 — Sun, 24 Apr 2005 07:10:41 GMT

To Mark Syder:
I have already changed mtime to +3 but that is not I expect.
To Naveej:
Had error in your command line:"find: -exec not terminated with ';'"
To Robert-Jan Goossens:
Could you attached that shell file? Silly but I can not find that file (caljd.sh)
To Geoff Wild:
It seems that just delete all of the directory, I have tried to change to :
"rm -Rf $LOG" but the same!

Any idea?
Thanks
HoangChiCong

Re: Need shell script.....

Robert-Jan Goossens_1 — Sun, 24 Apr 2005 11:19:36 GMT

Here it is (attached and linked) :-)

http://mirrors.develooper.com/hpux/caljd-2.23.sh

Robert-Jan

Re: Need shell script.....

Geoff Wild — Sun, 24 Apr 2005 11:37:12 GMT

Ah....I got it:

#!/bin/sh
TODAY=`date +%Y%m%d`
DAY3=`expr $TODAY - 2`

for LOG in `ls /home/ams/coms/log`
do
if [ `expr $LOG \< $DAY3` = 1 ]
then
echo $LOG
rm -rf /home/ams/coms/log/$LOG
fi
done

Re: Need shell script.....

Hoang Chi Cong_1 — Mon, 25 Apr 2005 02:00:24 GMT

OK, thanks to everybody!
May be I have to learn shell programming. :):):)
Can anyone show me some usefull document that teaching shell programming? (Anyway, for beginer is suitable for me - I thinks so :(:( ).

Thanks again.
Regard,
HoangChiCong

Re: Need shell script.....

Joseph Loo — Mon, 25 Apr 2005 02:07:02 GMT

hi,

how about this doc:

http://docs.hp.com/en/B2355-90046/index.html

regards.