The grep command – likely one of the first ten commands that every Unix user comes to know and love – is not just a nice tool for finding a word or phrase in a file or command output.

The grep command is a handy, reliable tool for searching for files or information. This tutorial illustrates 10 ways to take advantage of its power and flexibility.

You can make your life a little easier and more productive by adding some Unix power to your Windows system.

Grep and diff are command line-based text analysis tools available in all Linux and Unix distributions. Both are designed to parse documents on a line-by-line basis.

Under UNIX, you can use the FILENAME statement to assign filerefs not only to external files and I/O devices, but also to a pipe. Pipes enable your SAS application to receive input from any UNIX ...

Taking grep to the next level with regular expressions The real power of the grep command can be unlocked by using regular expression (regex) syntax, a simple language for describing the ...

Incidentally, you can do a lot of these command-line exercises almost as succinctly with perl one-liners, which is one reason why perl was so popular among Unix-heads back in the days.