These are system log files, you should clear them rather than delete them:
[h=2]Clearing log files automatically[/h]
You can clear log files automatically using
crontab(C) and
cron(C). By adding a line to
root's
crontab file (
/usr/spool/cron/crontabs/root), you can make your own file maintenance scripts execute daily, weekly, or monthly.
The following is one of the default entries in
root's
crontab file:
17 5 * * 0 /etc/cleanup > /dev/null See
crontab(C) manual page for complete information on the format of the
crontab file.
This entry runs
/etc/cleanup each Sunday morning at 5:17.
NOTE: If multiple machines mount the same NFS filesystems, all machines will run the
find at the same time, searching all the NFS-mounted filesystems as well as the local filesystems. Therefore, running this script without some modifications could impose heavy network load. For example, adding the
-mount or
-local options to the
find(C) command will restrict the search to the root filesystem, or local filesystems, respectively.
The
/etc/cleanup script looks like this:
: # # clean up super-user log cp /usr/adm/sulog /usr/adm/Osulog > /usr/adm/sulog # # clean up volcopy log [ -f /etc/log/filesave.log ] && mv /etc/log/filesave.log /etc/log/Ofilesave.log > /etc/log/filesave.log chown root /etc/log/filesave.log chgrp sys /etc/log/filesave.log chmod 666 /etc/log/filesave.log # # clean up wtmp > /etc/wtmp # # clean up miscellaneous files find / -name core -atime +7 -exec rm -f {} \; The
/etc/cleanup script:
- copies the sulog file to Osulog and then clears sulog.
- moves filesave.log (if it exists) to Ofilesave.log, creates a new, empty filesave.log, and sets the proper permissions.
- clears the /etc/wtmp file.
- removes all core files that have not been accessed in the last seven days.
You can specify different files to clear and when to clear them by modifying
/etc/cleanup and the
/usr/spool/cron/crontabs/root file.