Grep Tutorial at Pinehead blog

[amenditman]

A really nice tutorial about using grep command. If you don't know it, you should. One of the most useful and powerful utilities built into Linux/Unix systems.

 

Check it out on pinehead.tv

 

The grep command allows searching the contents of a file from the

command line. It’s a very useful tool to find a particular line in,

say, a log file or a conf file. And because it’s a command line

program, you can combine it with other commands in various ways to

produce powerful results. In this tutorial, you will learn both the

basics and some more advanced applications of grep.

[securitybreach]

Nice tutorial!! I have used grep for many years but there were a few tips on that page that I was not familiar with.

[amenditman]

Nice tutorial!! I have used grep for many years but there were a few tips on that page that I was not familiar with.

Yes, it is an extremely useful and flexible tool. But at the same time it follows the Unix philosophy, "a utility shall do only one thing and do it completely".

I am constantly reading the man page and the info pages for grep, every time I seem to find a new power feature I had not known before.

[sunrat]

Nice one! I learned something in the first example. Instead of doing

grep <needle> <haystack>

I've always done

cat <haystack> | grep <needle>

I will now save myself valuable seconds and wear on my fingers.

[amenditman]

Nice one! I learned something in the first example. Instead of doing

grep <needle> <haystack>

I've always done

cat <haystack> | grep <needle>

I will now save myself valuable seconds and wear on my fingers.

Yay! Command line foo strikes again.