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Unix

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

st
sh
sort -r
sort

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

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

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Unix
The command used to remove the directory is;

rd
rmdir
None of these
remove
rdir

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

w
s
r
d

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

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

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Unix
Which command is used to display the characteristics of a process?

pid
ps
au
du

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