Shell Programming and Scripting

Hi,
I am writing the script for tomcat logs clean up ending with *.txt and *.log.
cleanup should be applied to logs older than 7 days logs same will be scheduled in cron.

after googling found below but it only help partially.

Code:

find . -type f -name '*.log' -exec truncate --size 0 "{}" \;

I can list out the files older than 7 days.

Code:

find . -mtime +7 -exec ls -lrt {} \;

getting issue while combining the commands ,any best pointer can i have to the task?

If you are getting the list of files you want with one of the above, what would you prefer to happen next?

The second find command is selecting file in the current directory and below that are older than seven days, more correctly more than 7*24*60*60 seconds since last modified. The -exec ls -lrt {} \; section then attempts to give you the long (reversed time ordered) listing of each file. This is a one-at-a-time list, so the output will still be unsorted. Does this really matter?

You might do better with one of these:-

Code:

find . -mtime +7 -exec ls -lrt {} +
find . -mtime +7 | xargs ls -lrt

.... however if there are too many files to list in one go, this will break into multiple ls commands and the output will be sorted in chunks but still not entirely.


What is the eventual plan for the selected files?



Robin

What if you add the -mtime test to the first command?

Eventual plan is to nullify the *.log and *.txt logs older than 7 days and to schedule the script .

---------- Post updated at 08:32 AM ---------- Previous update was at 07:44 AM ----------

Code:

find . -type f -name '*.log' -mtime +7 -exec truncate --size 0 "{}" \;

How to add *.txt in the above command means multiple extension.

How about ORing in a second -name test using the -o operator (incl. parentheses)? Or, extend the ".log" pattern like [lt][ox][gt] (with the danger of false positives)?

Below worked fine. Thanks.

Code:

find . -type f -name '*.log' -o -name '*.txt' -mtime +7 -exec truncate --size 0 "{}" \;

Moderator's Comments:

Please use CODE tags as required by forum rules!

You may have found ".log" files younger than 7 days as without grouping the -name tests using parentheses the -mtime will be valid for the ".txt" test only.