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

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

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Unix
The % key allows you

to move the cursor to the first column in the current line
to move the cursor to a matching delimiter, when a delimiters a parenthesis, a bracket, or a brace.
to move the cursor backward to the beginning of a word
to move the cursor to the upperleft corner of the screen

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

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