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Unix

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

s
S
R
r

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Unix
Which of the following keys is used to delete the character beneath the cursor?

None of these
D
X
x
dd

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Unix
Which command is used to copy the three files wb, collect and mon into the misc directory, under the same, when you were currently in the programs directory?

None of these
copy wb collect mon /misc
cp wb collect mon ../misc
copy wb ../misc collect ../misc mon ../misc
tar wb collect mon /misc

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Unix
Which of the following commands is used to save the output of the who command in a file named user.lst, as well as display it?

None of these
who < user.lste
who | tee user.lst
who > user.lst
who >> user.lst

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Unix
Which of the following command is used to count just the number of lines contained in a file?

None of these
wc -r
wc -l
wc -w
wc -c

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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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