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UNIX

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

dd
x
X
None of these
D

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Unix
Which command is used to assign only read permission to all three categories of the file 'note'?

chmod go+r note
chmod a-rw
None of these
chmod u+r,g+r,o-x note
chmod ugo=r note

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

I
A
a
None of these
i

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Unix
The first set of the three permissions (rw) pertains to the owner of the file, indicating that the owner has

None of these
executable permission only
write and executable permissions
both read and executable permissions.
both read and write permissions

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Unix
Which of following commands is used for an automatic reminder service?

write
mail
None of these
mesg
calendar

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