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Unix

Unix
Which symbol will be used with grep command to match the pattern pat at the beginning of a line?

$pat
pat^
^pat
pat$

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Unix
Which of the following files will displayed by this command cat *ch*

All of these
.ch
patch
catch

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Unix
Which of the following keys is used to overstrike a whole line?

v
u
None of these
C
R

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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
kill
#NAME?
+(m+l).n

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Unix
Which command is used to move all files to the bin sub-directory of the parent directory?

None of these
mv * ../bin *.*
mv * /bin/*
mv * ../bin
mv *.* /bin/

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Unix
Which symbol is used to separate more than one command in the same command line?

:
$
;
#

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