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Unix

Unix
The command used to compare the files is known as

cmp
comp
ccp
do

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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
mail
write
mesg
grep

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Unix
Which command is used to remove the read permission of the file 'note' from both the group and others?

chmod go+r note
chmod go-x note
chmod go+rw note
chmod go-r note

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

touch
cat
grep
wc

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

mesg
wall
mail
write

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Unix
If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use

stty echoe
tty ^c
stty intr ^c
stty echo ^a

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