Can use help with a UNIX/linux problem: Consider the resume summary of a candida

Question

Can use help with a UNIX/linux problem:

Consider the resume summary of a candidate below: $ cat cvsum

In-depth knowledge of UNIX systems security and secure system access programs. Comprehensive knowledge of UNIX operating systems like
Solaris, Red Hat Linux, HP-UX, SUSE Linux, Ubuntu and other Unix distributions. Advance knowledge of UNIX development and programming methods and procedures. Possess strong management, problem solving and customer service skills.

Excellent oral and written communication skills.
Ability to build and maintain good rapport with clients and colleagues.

You are a lazy recruiter (don’t feel bad, most recruiters are) and don’t want to read through the whole summary. Show how you can use fgrep to print only those lines matching Unix, UNIX, and Linux skill set.

Explanation / Answer

fgrep "Unix|UNIX|Linux" cvsum

The above command outputs the lines which have any one of the three patterns.

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