11374810
Beschreibung
Quiz von brayhan gutierrez cespedes, aktualisiert more than 1 year ago
|
Erstellt von brayhan gutierrez cespedes
vor mehr als 6 Jahre
|
|
Frage 1
Frage
Error messages generated by commands are sent where by default?
Antworten
-
Log files
-
STDOUT
-
STDERR
-
STDIN
Frage 2
Frage
A successful command will print output to STDOUT.
Antworten
- True
- False
Frage 3
Frage
Which of the following commands will direct error messages to the file, error.log?
Antworten
-
ls /root >> error.log
-
ls /root 2> error.log
-
ls /root $> error.log
-
ls /root > error.log
Frage 4
Frage
A pipe allows you to…
Antworten
-
…send the same input to multiple commands.
-
…type multiple commands at one prompt.
-
…send the output of one command to another.
-
…send the output of a command to a file.
Frage 5
Frage
Channel 2 is:
Antworten
-
STDIN
-
STDALL
-
STDOUT
-
STDERR
Frage 6
Frage
Which of the following commands will append its output to output.file?
Antworten
-
echo Testing > output.file
-
echo Testing >> output.file
-
output.file < echo Testing
-
echo Testing -> output.file
Frage 7
Frage
Which command(s) can be used to sort the lines of list.file alphabetically and display it on the screen?
Antworten
-
sort < list.file
-
cat list.file | sort
-
cat list.file >> sort
-
echo list.file > sort
Frage 8
Frage
Which option of the head command will display only the first five lines of a file?
Antworten
-
-l 5
-
No option needed; head displays only five lines by default.
-
-n
-
-n 5
Frage 9
Frage
The grep command…
Antworten
-
…will display all the lines that begin with the specified Regular Expression.
-
…is not case sensitive.
-
…will display all the lines in a file containing the specified Regular Expression.
-
…will display the line numbers in a file that contain a specified Regular Expression.
Frage 10
Frage
The grep command can be used with glob characters.
Antworten
- True
- False
Frage 11
Frage
Which of the following commands will display only lines that begin with start?
Antworten
-
grep *start file.txt
-
grep $start file.txt
-
grep start file.txt
-
grep ^start file.txt
Frage 12
Frage
Which of the following commands will display only lines that begin with test?
Antworten
-
grep ^test file.txt
-
grep $test* file.txt
-
grep *test file.txt
-
grep &test file.txt
Frage 13
Frage
Which of the following commands will display lines that contain either start or end?
Antworten
-
egrep start end file.txt
-
egrep ‘start|end’ file.txt
-
egrep start&end file.txt
-
egrep (start|end) file.txt
Frage 14
Frage
Which of the following commands can be used to scroll through a text file?
Antworten
-
some
-
less
-
cat
-
more
Frage 15
Frage
The find command can search for files based on the size of the file.
Antworten
- True
- False
Frage 16
Frage
Which of the following commands scans the file to determine file locations?
Antworten
-
search
-
locate
-
where
-
find
Frage 17
Frage
Which option for the cut command is used to specify a delimiter?
Antworten
-
-f
-
-d
-
=
-
-D
Frage 18
Frage
Which option for the cut command is used to specify the field?
Antworten
-
-D
-
-f
-
-d
-
#
Frage 19
Frage
Which option for the wc command will print the number of lines in a file?
Antworten
-
-l
-
-w
-
-C
-
-L
Frage 20
Frage
Which option for the wc command will print the total number of words in a file?
Antworten
-
-l
-
-L
-
-C
-
-w
Frage 21
Frage
Which command can be used to print line numbers?
Antworten
-
num
-
sort
-
ln
-
nl
Frage 22
Frage
The command echo “text” > file.txt will create file.txt if it does not already exist.
Antworten
- True
- False
Frage 23
Frage
The command echo “text” > file.txt will not overwrite file.txt if it already exists.
Antworten
- True
- False
Frage 24
Frage
The command echo “text” >> file.txt will not overwrite file.txt if it already exists.
Antworten
- True
- False
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.