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Unix

Unix
Which of the following commands is used to get directory one level up?

None of these
cd/
chdir
cd ..
cd

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Unix
Which command is used with vi editor to save file and remain in the editing mode?

q!
None of these
:q
:x
:w

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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 command is used to make all files and sub-directories in the directory (progs) executable by all users?

chmod -1 a+x progs
chmod -R a+x progs
chmod -x a+x progs
chmod -R 222 progs

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Unix
In vi editor, forward search is performed using the command.

?pat
:pat
All of these
/pat

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Unix
Which of the following set options is used with vi editor to ignore case while searching for patterns?

ic
ai
sm
ts

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