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

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

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Unix
Which of the following commands is used to remove files with confirmation prompt from the user file system which have neither been accessed nor modified i the last one year?

find -name - mtime + 365 / - ok rm
None of these
grep (/usr/*) - mtime + 365 | -ok rm
find -mtime +365 | rm
find /user/* (-mtime + 365 - a - atime +365 ) - OK rm {} ;

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Unix
The [line number G] key allows you

to move cursor left by one position
to move cursor right by one position
None of these
to move cursor down by one line
to move cursor to the beginning of the line specified by the number

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Unix
The special shell variable $* is used

to exit status of ast command executed.
to name the command being executed
to list the positional parameters
None of these
to process number of the current shell

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