Answer Posted / abhishek dilliwal

cat is for concatenation of 2 or more files if used over
single file it simply displays its contents

touch is used for modifying the time stamp of a file, also
used for making empty files

try,
$touch file{1,2,3,4}
to create 4 files as: file1, file2,..

Differentiate cmp command from diff command.

1108

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What is the difference between awk and grep?

1151

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Write a command that will allow a unix system to shut down in 15 minutes, after which it will perform a reboot.

1144

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Is ‘du’ a command? If so, what is its use?

1094

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How does pipe () work?

1043

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Can you enlist some commonly used network commands?

1054

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What is grep and how do you use it?

1054

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What does touch command do in unix?

1344

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How do I open a port?

1038

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What is a bash command?

1115

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What is the use of tee command?

1077

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What are reported commands?

1075

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Write a command that will find all text files in a directory such that it does not contain the word "amazing" in any form (that is, it must include the words amazing, amazing, or amazing)?

1516

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What do chgrp command do?

1145

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Which command should you use to find the remaining disk space in unix server?

1235

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