disk cleanup on centos

today i've learn new command

du (disk usage)

use disk usage with -s (summary) and -h (human readable)

http://www.linuxforums.org/forum/mandriva-linux/58742-making-free-space.html

du -sh /*

Good luck! :)

clean up disk space

today i delete previous kernel files. this freed up about 200MB :)

[root@local html]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/hdb6 8.6G 7.9G 250M 97% /

i'm using this reference:

http://www.cyberciti.biz/faq/proper-way-to-remove-old-linux-kernels/

clear logs

refer to this page

http://www.linuxquestions.org/questions/debian-26/how-to-clear-all-kinds-of-logs-under-debian-404616/

cat /dev/null > /var/log/messages
cat /dev/null > /var/log/wtmp
cat /dev/null > /var/log/maillog

etc..

this will delete the contents of the file without removing the file itself or changing any of it's permissions. Repeat as necessary for each log file, write into a bash script whatever.. then delete all the numbered log files ( i.e. messages.1.tar.gz ) which are old logs that have been backed up from logrotate or a similar app.

from farslayer

some error logs with location

cat /dev/null > /var/log/messages
cat /dev/null > /var/log/openwebmail.log
cat /dev/null > /var/log/maillog
cat /dev/null > /var/log/secure
cat /dev/null > /var/log/httpd/error_log
cat /dev/null > /var/log/httpd/ssl_error_log
cat /dev/null > /var/log/httpd/ssl_request_log
cat /dev/null > /var/log/httpd/ssl_access_log