A./var/lib64/

B./usr/lib64/

C./opt/lib64/

D.~/.lib64/

E./lib64/

A.It only outputs non-matching lines.

B.It enables color to highlight matching parts.

C.It shows the command's version information.

D.It outputs all lines and prefixes matching lines with a+.

E.It changes the output order showing the last matching line first.

A.chown dave:staff data.txt

B.chown -u dave -g staff data.txt

C.chown dave/staff data.txt

D.chown dave+staff data.txt

E.chown --user dave --group staff data.txt

A.3

B.5

C.6

D.0

E.1

A.tr '\r' '\n' userlist.txt newlist.txt

B.tr -s '^M' '^J' userlist.txt newlist.txt

C.tr -c '\n\r' '' < newlist.txt > userlist.txt

D.tr -d '\r' < userlist.txt > newlist.txt

E.tr '\r\n' '' < userlist.txt > newlist.txt