Answer Posted / sricharan

touch:
It can be used to create 0 byte empty file.
syntax: touch filename.txt
we can create multiple file using touch command.
syntax: touch file1.txt file2.txt file3.txt ..... filen.txt
touch commnad is also used to update time stamp
Syntax:touch filename

cat:
It can be use to view the file.
Syntax:cat filename
It can be use to append the existing file.
syntax: cat >> filename
It can be use to concatinate n number of files to one file.
syntax: cat file1 file2 file3 file4 >> newfile
cat is also used to create a file
syntax: cat filename

Differentiate cmp command from diff command.

576

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What is the behavioural difference between cmp and diff commands?

660

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What are some command words?

547

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Describe the zip/unzip command using gzip.

594

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What are bash commands?

577

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Why is it called grep?

547

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What is unix command?

571

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How do you grep recursively?

545

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Why is awk called awk?

569

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Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

622

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What is ‘ps’ command for?

598

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What does grep v grep do?

534

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Write a command to display a file’s contents in various formats?

608

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How do I find previous commands in unix?

581

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Which command is used to create a directory?

552

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