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Unix

Unix
Which command will be used with vi editor to append text at end of line?

A
i
a
None of these
I

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

grep
wc
touch
cat

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Unix
Which option will be used with disk free command to include the total amount of disk space in the file system?

#NAME?
#NAME?
-4
#NAME?
None of these

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Unix
Which command is used to display the characteristics of a process?

pid
au
du
ps

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Unix
Which of the following keys is used to overstrike a whole line?

u
v
None of these
R
C

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Unix
The command that can be used to restrict incoming messages to a user is

None of these
grep
sleep
mesg
halt

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