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Unix

Unix
Which command is used to display the characteristics of a process?

du
au
ps
pid

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Unix
Which of the following special shell variables is used to process number of the last background job?

$!
$*
$0
$#

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Unix
Which command will be used with vi editor to append text at end of line?

a
None of these
i
I
A

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Unix
Which command is used to assign only read permission to all three categories of the file 'note'?

chmod a-rw
chmod go+r note
chmod ugo=r note
None of these
chmod u+r,g+r,o-x note

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Unix
Which shell's wild-cards is used to match a single character?

?
None of these
*
[ijk]
[!ijk]

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Unix
Which option will be used with sort command to start sorting ofter the nth column of the (m+l)th field?

None of these
+(m+l).n
kill
#NAME?

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