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LPI 101-500 Practice Test - Questions Answers, Page 9

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

A.
gzip archive.tgz | tar xvf -
A.
gzip archive.tgz | tar xvf -
Answers
B.
tar ztf archive.tgz
B.
tar ztf archive.tgz
Answers
C.
gzip -d archive.tgz | tar tvf -
C.
gzip -d archive.tgz | tar tvf -
Answers
D.
tar cf archive.tgz
D.
tar cf archive.tgz
Answers
Suggested answer: B

Which grep command will print only the lines that do not end with a / in the file foo?

A.
grep'/$' foo
A.
grep'/$' foo
Answers
B.
grep '/#' foo
B.
grep '/#' foo
Answers
C.
grep -v '/$' foo
C.
grep -v '/$' foo
Answers
D.
grep -v '/#' foo
D.
grep -v '/#' foo
Answers
Suggested answer: C

Which of the following commands is used to change options and positional parameters for a running Bash?

A.
history
A.
history
Answers
B.
set
B.
set
Answers
C.
bashconf
C.
bashconf
Answers
D.
setsh
D.
setsh
Answers
E.
envsetup
E.
envsetup
Answers
Suggested answer: B

Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter?

A.
sed '/bob/Bob' letter > newletter
A.
sed '/bob/Bob' letter > newletter
Answers
B.
sed s/bob/Bob/ letter < newletter
B.
sed s/bob/Bob/ letter < newletter
Answers
C.
sed's/bob/Bob' letter > newletter
C.
sed's/bob/Bob' letter > newletter
Answers
D.
sed 's/bob/Bob/g' letter > newletter
D.
sed 's/bob/Bob/g' letter > newletter
Answers
E.
sed 's/bob, Bob/' letter > newletter
E.
sed 's/bob, Bob/' letter > newletter
Answers
Suggested answer: D

From a Bash shell, which of the following commands directly executes the instruction from the file

/usr/local/bin/runme.sh without starting a subshell? (Please select TWO answers.)

A.
source /usr/local/bin/runme.sh
A.
source /usr/local/bin/runme.sh
Answers
B.
. /usr/local/bin/runme.sh
B.
. /usr/local/bin/runme.sh
Answers
C.
/bin/bash /usr/local/bin/runme.sh
C.
/bin/bash /usr/local/bin/runme.sh
Answers
D.
/usr/local/bin/runme.sh
D.
/usr/local/bin/runme.sh
Answers
E.
run /usr/local/bin/runme.sh
E.
run /usr/local/bin/runme.sh
Answers
Suggested answer: A, B

Regarding the command: nice -5 /usr/bin/prog Which of the following statements is correct?

A.
/usr/bin/prog is executed with a nice level of -5.
A.
/usr/bin/prog is executed with a nice level of -5.
Answers
B.
/usr/bin/prog is executed with a nice level of 5.
B.
/usr/bin/prog is executed with a nice level of 5.
Answers
C.
/usr/bin/prog is executed with a priority of -5.
C.
/usr/bin/prog is executed with a priority of -5.
Answers
D.
/usr/bin/prog is executed with a priority of 5.
D.
/usr/bin/prog is executed with a priority of 5.
Answers
Suggested answer: B

Which shell command is used to continue background execution of a suspended command?

A.
&
A.
&
Answers
B.
bg
B.
bg
Answers
C.
cont
C.
cont
Answers
D.
exec
D.
exec
Answers
E.
:&
E.
:&
Answers
Suggested answer: B

Which of the following shell redirections will write standard output and standard error output to a file named filename?

A.
2>&1 >filename
A.
2>&1 >filename
Answers
B.
>filename 2>&1
B.
>filename 2>&1
Answers
C.
1>&2>filename
C.
1>&2>filename
Answers
D.
>>filename
D.
>>filename
Answers
E.
1&2>filename
E.
1&2>filename
Answers
Suggested answer: B

In the vi editor, which of the following commands will copy the current line into the vi buffer?

A.
c
A.
c
Answers
B.
cc
B.
cc
Answers
C.
1c
C.
1c
Answers
D.
yy
D.
yy
Answers
E.
1y
E.
1y
Answers
Suggested answer: D

Which of the following sequences in the vi editor saves the opened document and exits the editor?

(Choose TWO correct answers.)

A.
esc ZZ
A.
esc ZZ
Answers
B.
ctrl :w!
B.
ctrl :w!
Answers
C.
esc zz
C.
esc zz
Answers
D.
esc :wq!
D.
esc :wq!
Answers
E.
ctrl XX
E.
ctrl XX
Answers
Suggested answer: A, D
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