My Question is little bit surprising, but i need it. I am using a slow processor laptop, now i found that HDD has some bad sectors and HDD response becomes slow. But disk health is ok(according to smart tools). I can not change my HDD right now. So decide to reduce disk operation. How do i prevent system to generate log file or any other file which are used to keep history? I know LOG file is very important but i don't care it right now. Please help.
You can probably get what you're after by moving the log location to tmpfs, which will not be written to disk (unless swapped).
Edit the files under /etc/rsyslog.d/* and make sure they're pointing to /tmp/filename instead of /var/log/filename.
Note: this is a hack.