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Unix

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

S
a
s
i

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Unix
Which commands is used to assign executable permission to all of the files named "letter"?

chmod u+x letter
chmod ugo+rw letter
chmod ugo+r letter
chmod ugo+x letter

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Unix
Which command is used to sort the lines of data in a file in alphabetical order?

sort -r
None of these
sort
st
sh

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

wc
grep
touch
cat

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Unix
Which of the following commands is used to summarize the disk usage?

None of these
fdisk
disk
chkdsk
du

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Unix
Which of the following files will displayed by this command cat *ch*

All of these
.ch
patch
catch

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