ps -ef | grep mailnull | grep -v grep | awk ‘{print “kill -9?, $2}’ | sh

For those who do not know what a terminal prompt is (bash shell prompt), it’s the thing you see when you open up the terminal. The default looks like “user@host:…

tr -c "[:digit:]" " " < /dev/urandom | dd cbs=$COLUMNS conv=unblock | GREP_COLOR="1;32" grep --color "[^ ]"

ping -i 60 -a IP_address Waiting for your server to finish rebooting? Issue the command above and you will hear a beep when it comes online. The -i 60 flag…

'spacebar' command This is sample output - yours may be different. $ echo this goes to history this goes to history $ echo this wont go to history this wont…

perl -e '$i=0;while($i<10){open(WGET,qq/|xargs lynx -dump/);printf WGET qq{http://www.google.com/search?q=site:g33kinfo.com&hl=en&start=$i&sa=N},$i+=10}'|grep '//g33kinfo.com/' curl -A Mozilla http://www.google.com/search?q=Linux |html2text -width 80 html2text http://www.google.com/search?q=searchtermhere dig +short txt linux.wp.dg.cx -wikipedia search check gmail from command line curl -u…

If your mail server is properly set up then you can go: mail -s "Boo Boo" youremail@host.com < file.txt