Question

Please provide screenshots of the commands.

1. ls – list directory contents $ ls

$ ls -l

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$ ls -alg

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2. $ which echo

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3. $ whereis echo

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4. $ file <output from procedure 5>

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alias – short cut command to a longer command

$l

$ alias l=”ls -alg"
$l

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$ unalias l
$l

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Answer 1

1) ls -l (It gives long listing format of files in a directory)

2) ls -alg (It gives long listing format of files in a directory without displaying its owner)

3) which echo (It gives locates the path of command)

4) whereis echo (It locates the source or binary file of the command)

5) file <filename> (It gives the type of file)

6) alias l=”ls -alg" (alias is used as the shortcut for a command)

7) unalias l (It wiill delete the alias command or the shortcut command)

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