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Unix

Unix
Which of the following command addresses all users who are currently hooked on?

mesg
write
wall
mail

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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?

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

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Unix
Which of the following commands is used to assign executable permission to the owner of the file named "note"?

chmod g+x note
chmod u+w note
chmod ugo+x note
chmod u+x note

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Unix
Which of the following directories contain all the Alias created by a user, including his login directory?

/usr
/tmp
/etc
/dev

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Unix
Which command is used to display all the lines with the string 'sales' from the file empl.lst?

None of these
/sales > empl.lst
cut sales empl.lst
cat | /sales > empl.lst
grep sales empl.lst

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Unix
Which command is used to sort the lines of data in a file in reverse order

st
sh
sort
sort -r

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