grep failure /var/log/secure This is an example of what grep might then return: Apr 4 06:45:29 smatteso-vm1 sshd[14836]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ...

The grep command – likely one of the first ten commands that every Unix user comes to know and ... that you want to match as shown in the example below. With -F, grep interprets that patterns ...

grep AppleTalk /etc/services, for example. Here, you tell grep to look for AppleTalk in the services file located in the /etc directory. (This useful file contains a list of network port numbers ...

In the examples below, the line containing the word “session” is only included when the full word is used in the command. $ grep -w 'fly ... was a programmer, Linux systems administrator ...

For example, the sed man page weighs in at around 1,800 words alone without ever really explaining how regular expressions work or the most common uses of sed itself. If you find yourself in the ...

If you've been a Linix/UNIX user for a long time you surely know what RTFM means ... My first exposure to *NIX was decades ago and just recently somebody pointed out some new options to grep that I've ...