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Unix

Unix
Which of the following commands is used to get directory one level up?

None of these
chdir
cd/
cd
cd ..

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

mail
mesg
write
None of these
calendar

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Unix
Which command is used with file named 'note' to remove the executable permission from the user and assign read permission to the group and others?

chmod go+x, u-x note
None of these
chmod go+r, u+x note
chmod u-x, go+r note
chmod g-x, uo+r note

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Unix
Which of command is used to copy a file?

None of these
tar
cpio
copy
cp

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Unix
Which of the following commands is used to list contents of directories?

dir
tar
ls
lp

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Unix
Which command will be used with vi editor to insert text to left of cursor?

a
S
s
i

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