What is command substitution?
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What is grep r?
What do chgrp command do?
how unix kernel distinguishes between a normal file and device file ?
7 Answers Google, IBM, McAfee, Vodafone,
how to check a file system type
how many types of file in unix?
34 Answers MNC, TCS,
What does grep v grep do?
what will this do $cat > file.c ?(file.c is a file in current directory)
Who invented grep?
Is command prompt unix?
How does the user view the contents of a text file in UNIX?
How can i know my Filesystem and its current usage in my prod UNIX system?
why unix operating system provides more security than other operating systems?