What is the effect of the -voption for the grepcommand?

• A.It enables color to highlight matching parts.
• B.It only outputs non-matching lines.
• C.It changes the output order showing the last matching line first.
• D.It outputs all lines and prefixes matching lines with a+.
• E.It shows the command's version information.

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What does the command mount -a do?

• A.It mounts all filesystems listed in /etc/fstab which have the option noauto set.
• B.It mounts all user mountable filesystems for thecurrent user.
• C.It mounts all available filesystems onto the current directory.
• D.It shows all mounted filesystems.
• E.It mounts all filesystems listed in /etc/fstab which have the option auto set.

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Which of the following commands displays the contents of a gzip compressed tar archive?

• A.gzip archive.tgz | tar xvf -
• B.tar ztf archive.tgz
• C.tar cf archive.tgz
• D.gzip -d archive.tgz | tar tvf -
• E.tar -fzt archive.tgz

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A user accidentally created the subdirectory \dirin his home directory. Which of the following commands will remote that directory?

• A.rmdir ~/\\dir
• B.rmdir "~/\dir"
• C.rmdir ~/'dir'
• D.rmdir ~/\dir
• E.rmdir '~/\dir'

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From a Bash shell, which of the following commands directly execute the instructions from the file /usr/ local/bin/runme.shwithout starting a subshell? (Choose two.)

• A./usr/local/bin/runme.sh
• B.. /usr/local/bin/runme.sh
• C.run /usr/local/bin/runme.sh
• D./bin/bash /usr/local/bin/runme.sh
• E.source /usr/local/bin/runme.sh

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