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Unix

Unix
Which command is used to count just the number of characters in a file?

wc -c
wc -w
wc - 1
wc -r

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Unix
Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories?

rm all
rm -r *
rm *
None of these
rm *.*

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Unix
Which of the following commands is used to copy a file wb from the programs directory into a file called wbx in the misc directory?

cp programs/wb misc/wbx
copy programs/wb misc/wbx
copy a:programs/wb b:misc/wbx
tar programs/wb misc/wbx

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Unix
Which of the following signs is used to back up over typing errors in vi?

None of these
!
@
#
$

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Unix
Which command is used to display a file contents in octal form?

od
cd
of
oct

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

au
du
pid
ps

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