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Unix

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

st
sort -r
sh
sort

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Unix
Which command is used to display the top of the file?

head
more
grep
cat

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Unix
Which of the following commands is used to remove files?

None of these
erase
delete
dm
rm

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Unix
Which command will be used with vi editor to replace text from cursor to right?

c
r
C
R

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Unix
Which of the following commands is used to have a two-way communication with any person who is currently logged in?

None of these
mesg
write
mail
grep

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Unix
Which of the following commands is used to update access and modification times of a file?

touch
wc
grep
cat

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