Saturday, September 09, 2006

LINUX: Useful commands

ps -aux|grep java //show processes containing 'java'
top //display processes list
passwd //change current users password
passwd gus123 //change password user gus123
service iptables stop //stops firewall from running
chkconfig iptables off//firewall won't start on boot

tail -f textfile//turns a log file thats being
//generated into a console
netstat -a //shows port usage
touch <file> //update timestamp of file
dd if=/dev/zero of=/dev/hda/ bs=512 count=1//wipe mbr
free -m //check mem usage
du -x --block-size=1024K | sort -nr | head -10
//10 biggest folders in current path
wc -l gives linecount

Memory Usage Tools useful also useful

1 comment:

Anonymous said...

The 'dd' command needs 'bs=512' with the 'count=1' to do a complete wipe of the MBR.