shell script to partial delete

q8devilish · #1 (**permalink**) 07-02-2009

guys i need some help in writing a shell script, what i am trying to write is a shell script that can delete generated trace files my software usually generated everyday, i will give an example to make it easy to understand

Code:

root@cms-db # pwd
/pcard17/trace
root@cms-db # ls -l HSM_VERIF.TRC*
-rw-r--r--   1 pwrcard  dba      4194432 Jul  1 00:18 HSM_VERIF.TRC111111545
-rw-r--r--   1 pwrcard  dba      4194432 Jul  1 00:51 HSM_VERIF.TRC111111546
-rw-r--r--   1 pwrcard  dba      4195092 Jul  1 01:29 HSM_VERIF.TRC111111547
-rw-r--r--   1 pwrcard  dba      4194432 Jul  1 02:22 HSM_VERIF.TRC111111548
-rw-r--r--   1 pwrcard  dba      4195092 Jul  1 04:02 HSM_VERIF.TRC111111549
-rw-r--r--   1 pwrcard  dba      4194432 Jul  1 05:33 HSM_VERIF.TRC111111550
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 06:16 HSM_VERIF.TRC111111551
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 06:40 HSM_VERIF.TRC111111552
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 06:58 HSM_VERIF.TRC111111553
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 07:15 HSM_VERIF.TRC111111554
-rw-r--r--   1 pwrcard  dba      4195752 Jul  2 07:34 HSM_VERIF.TRC111111555
-rw-r--r--   1 pwrcard  dba      4195488 Jul  2 07:52 HSM_VERIF.TRC111111556
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 08:04 HSM_VERIF.TRC111111557
-rw-r--r--   1 pwrcard  dba      4195224 Jul  2 08:16 HSM_VERIF.TRC111111558
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 08:27 HSM_VERIF.TRC111111559
-rw-r--r--   1 pwrcard  dba      4195224 Jul  2 08:37 HSM_VERIF.TRC111111560
-rw-r--r--   1 pwrcard  dba      4195620 Jul  2 08:45 HSM_VERIF.TRC111111561
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 08:57 HSM_VERIF.TRC111111562
-rw-r--r--   1 pwrcard  dba      4194828 Jul  2 09:06 HSM_VERIF.TRC111111563
-rw-r--r--   1 pwrcard  dba      4195356 Jul  2 09:13 HSM_VERIF.TRC111111564
-rw-r--r--   1 pwrcard  dba      4194696 Jul  2 09:20 HSM_VERIF.TRC111111565
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 09:28 HSM_VERIF.TRC111111566
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 09:36 HSM_VERIF.TRC111111567
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 09:43 HSM_VERIF.TRC111111568
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 09:50 HSM_VERIF.TRC111111569
-rw-r--r--   1 pwrcard  dba      4195092 Jul  2 09:56 HSM_VERIF.TRC111111570
-rw-r--r--   1 pwrcard  dba      4194564 Jul  2 10:04 HSM_VERIF.TRC111111571
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 10:11 HSM_VERIF.TRC111111572
-rw-r--r--   1 pwrcard  dba      4195092 Jul  2 10:17 HSM_VERIF.TRC111111573
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 10:23 HSM_VERIF.TRC111111574
-rw-r--r--   1 pwrcard  dba      4194828 Jul  2 10:29 HSM_VERIF.TRC111111575
-rw-r--r--   1 pwrcard  dba      4194432 Jul  2 10:34 HSM_VERIF.TRC111111576
-rw-r--r--   1 pwrcard  dba       886908 Jul  2 10:36 HSM_VERIF.TRC111111577

what i am trying to do is crating a script that will delete only yesterday files and keep only latest 2 files for security reasons.

my attempt in creating was like that to delete all yesterday file

Code:

#!/bin/bash
clear
echo "Please Enter YESTERDAYS Date in this order Mmm dd"
echo -n "Enter Date:"
read otaibi
ls -l /pcard17/trace | grep "$otaibi" | grep HSM_VERIF.* | nawk '{print $9}' > /pcard17/trace/delete.txt
clear
cd /pcard17/trace
cat /pcard17/trace/delete.txt | while read line; do rm "$line" ; done

now how can i delete yesterday files and keep latest 2 files?

vidyadhar85 · #2 (**permalink**) 07-02-2009

you can use find command to find and delete yesterdays files

Code:

find your/dir/path -type f -name "HSM_VERIF.*" -mtime +1 -exec rm {} \;

and to keep only latest two you mean latest two of yesterdays files??

q8devilish · #3 (**permalink**) 07-06-2009

yes i would like to keep latest two of yesterdays files.

kshji · #4 (**permalink**) 07-06-2009

Example day Jul 2

Code:

ls -alt HSM_VERIF.* | grep " Jul  2 " | sed -n '3,$p' |  xargs rm -f

Or

Code:

ls -alt HSM_VERIF.* | grep " Jul  2 " | sed -n '3,$p' | while read line
do
      rm -f "$line"
done

q8devilish · #5 (**permalink**) 07-13-2009

thanks for the help it works like a charm

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
delete line from file if successful partial string found	cronjob78	UNIX for Advanced & Expert Users	7	05-14-2009 02:35 AM
cronjob: Partial script error	sundar63	Shell Programming and Scripting	2	11-07-2008 02:57 AM
shell script to delete directories...	Stephan	Shell Programming and Scripting	8	05-18-2008 11:00 AM
shell script to delete directories...	Stephan	Shell Programming and Scripting	5	05-16-2008 08:11 AM
Need Help: Delete a file by Shell Script	r3edi	Shell Programming and Scripting	5	07-11-2005 07:13 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by