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UNIX

Unix
Which option is used with the chmod command recursively to all files and sub-directories in a directory?

#NAME?
-R
None of these
-1

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Unix
Which command is used to change directory to the name beginning with a 'p'?

cd [p]
cd p*
cd p
cd p*

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Unix
Which of the following is invalid filename?

trial
TRY
my .file
None of these

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Unix
Which commands is used to assign executable permission to all of the files named "letter"?

chmod ugo+r letter
chmod u+x letter
chmod ugo+x letter
chmod ugo+rw letter

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Unix
Which set option is used with vi editor to display line numbers on screen?

nm
nu
li
ic

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