Can you use find with ps or doing find excluding file in use Post: 302981232

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Top Forums Shell Programming and Scripting Can you use find with ps or doing find excluding file in use Post 302981232 by newbie_01 on Thursday 8th of September 2016 04:18:04 PM

09-08-2016

Registered User

Can you use find with ps or doing find excluding file in use

Hi,

I am currently using the find below to remove old files. I am redirecting the listing to a file and then use a while-loop and do a rm

Code:

cd ${directory}
find . \( ! -name . -prune \) \( -type f -name "*.trc" -mtime +10 \) | sed 's#^./##' | sed "s#^#${directory}/#" 2>/dev/null | tee -a /tmp/rm_list_trc.txt
find . \( ! -name . -prune \) \( -type f -name "*.trm" -mtime +10 \) | sed 's#^./##' | sed "s#^#${directory}/#" 2>/dev/null | tee -a /tmp/rm_list_trm.txt

I've now just found out that some of the files that I am removing are actually still in use. Is it possible to tell find to do a fuser / lsof check and not do the remove if the file is in user?

Examples of these files that I want to exclude for getting removed are as below:

Code:

$ date
Fri Sep  9 07:50:44 NZST 2016
$ pwd
/u01/app/oracle/admin/qual1/bdump
$ ps -ef | grep qual1 | grep lgw
oracle   29112     1  0 Sep08 ?        00:00:01 ora_lgwr_qual13
$ ls -altr *lgw*trc
-rw-rw---- 1 oracle oinstall 955 Sep  8 11:35 qual13_lgwr_15798.trc
-rw-rw---- 1 oracle oinstall 805 Sep  8 11:40 qual13_lgwr_29112.trc
$ ls -altr *lgw*trm
ls: *lgw*trm: No such file or directory
$ date
Fri Sep  9 07:51:14 NZST 2016
$ ps -ef | grep qual1 | grep ora_p
oracle   21816     1  0 07:47 ?        00:00:00 ora_pz99_qual13
oracle   21818     1  0 07:47 ?        00:00:00 ora_pz98_qual13
oracle   29039     1  0 Sep08 ?        00:00:01 ora_pmon_qual13
oracle   29047     1  0 Sep08 ?        00:00:00 ora_psp0_qual13
$ ls -altr qual1*p*trc
-rw-rw---- 1 oracle oinstall 1770402 Sep  8 11:24 qual13_pmon_26250.trc
-rw-rw---- 1 oracle oinstall     890 Sep  8 22:00 qual13_pz98_31759.trc
-rw-rw---- 1 oracle oinstall     892 Sep  8 22:00 qual13_pz97_31903.trc

$ ls -altr *lgwr*
-rw-rw---- 1 oracle oinstall 955 Sep  8 11:35 qual13_lgwr_15798.trc
-rw-rw---- 1 oracle oinstall 805 Sep  8 11:40 qual13_lgwr_29112.trc
$ ps -ef | grep lgwr | grep prrq
oracle   29112     1  0 Sep08 ?        00:00:01 ora_lgwr_qual13
$ fuser qual13_lgwr_29112.trc
qual13_lgwr_29112.trc: 29112
$ pwd
/u01/app/oracle/admin/qual1/bdump
$ lsof /u01/app/oracle/admin/qual1/bdump/qual13_lgwr_29112.trc
COMMAND   PID   USER   FD   TYPE DEVICE SIZE/OFF    NODE NAME
oracle  29112 oracle    2w   REG  253,3      805 8357085 /u01/app/oracle/admin/qual1/bdump/qual13_lgwr_29112.trc
$

While these files may not have been modified for awhile and meet the find criteria for removal based on -mtime, we need to keep them as sometimes Oracle requests for these files if we log a call with them.

Currently, in the while-loop that I am using to do the rm, I am now doing a lsof or fuser now as well before doing the rm? Perhaps someone know of any better way of doing this.

Thanks in advance.

newbie_01

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