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Unix

Unix
While working with mail command, which command is used to save mail in a separate file?

s
d
r
w

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Unix
Which of the following keys is used to replace a single character with new text?

r
S
R
s

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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?

mail
grep
mesg
write
None of these

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

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

/tmp
/dev
/usr
/etc

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

None of these
I
i
A
a

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