Answer Posted / sreenivas

sed reads from standard input and/or file(s), applies specified
changes which are typically mostly editing changes, and
writes to
standard output. It is relatively similar to the text editor
ed(1),
except in the case of sed it doesn't alter its input
file(s)*, but
writes the data to standard output, and sed also has some
commands
which ed does not have (and in most cases wouldn't be
suitable for or
make sense for ed). sed's commands are mostly limited to editing
type commands.

awk is sort of like an interpreted somewhat C-like language with
added built-in functionality for dealing with strings and
patterns.
Though not a fully general purpose programming language, awk
is much
closer to such than sed.

Which command is used to find whether the system is 32 bit or 64 bit?

1074

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What command is used to switching between users in unix?

1024

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What is awk good for?

1085

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Who invented grep?

1105

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How to find $ai_serual resolved path by using unix

1635

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What does #!/ Bin sh do?

1014

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What's a command word?

1112

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Who wrote grep?

1011

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What is in grep command?

1116

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What happens when we execute a unix command?

1086

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What are bash commands?

1090

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What difference between cmp and diff commands?

1240

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Explain ‘library functions’ with respect to unix commands?

1112

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What is command statement?

1102

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What is the general format of unix command syntax?

1789

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