Advance linux command

A new la entry has been added:

Advance linux command

To get the list of username with its user ID in formatted way: Quote: # awk -F":" '{ print "username: " $1 "\t\tuid:" $3 }' /etc/passwd Find the particular string from the list of files in current directory: Quote: # cd /etc # for i in $(find -type f); do grep -iH nfsnobody $i; done Or Quote: # grep -iH nfsnobody * Get the no of occurrences of particular word in file: Quote: # awk '/ServerName/ {i=i+1} END {print i}' /etc/httpd/conf/httpd.conf # grep ServerName /etc/httpd/conf/httpd.conf

Thanks for taking the to write this down. With all due respect but IMHO this looks more like an addition to the Tricks and hints thread because it explains nothing. It isn't very consistent in what it tries to say and it's in the wrong section (Security).

Just add command :
1. For check ssh failure log ( in GNU/Linux Debian)

#/bin/cat /var/log/auth.log  |grep sshd:auth |grep failure |awk '{print $1"-" $2 "-" $3 "-->" $12 "->" $14 "->" $15}'

2. Kill program one time click base keyword

#for a in $( ps aux | grep  "some-thing-text" | awk '{ print $2 }'); do kill $a; done;

exp ( klill crontab )

#for a in $( ps aux | grep  "/USR/SBIN/CRON" | awk '{ print $2 }'); do kill $a; done;

3. Check cpu info

# cat /proc/cpuinfo