Linux Basico 5
Authored by JUAN ALFONZO MARTINEZ AYALA
Information Technology (IT)
Professional Development
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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following commands will print lines from the file world.txt that contain matches to changes and changed?
grep change[ds] world.txt
tar change[d-s] world.txt
find "change'd|s'" world.txt
cat world.txt changes changed
find change[^ds] world.txt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following redirection operators appends a program’s standard output to an existing file without overwriting that file’s original contents?
|
2>
&>
>
>>
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The find command enables you to locate files based on their sizes.
VERDADERO
FALSO
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Complete the following command to redirect both standard output and standard error from the bigprog program to the file out.txt.
$ bigprog ______ out.txt
|
2>
&>
>
>>
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You’ve typed rmdir junk to delete the junk directory, but this command has failed because junk contains word processing files. A command that will work is ________________.
rmdir -r junk
rmdir -P junk
rm -r junk
rm -f junk
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the symbolic representation of this numerical permission:: 644?
rwxr-xr-x
rw-r--r--
rw-------
r--rw-rw-
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Given a file with permission755, What commands would change the permission to r-xr--r--?
chmod 544 filename
chmod u+w,go+x filename
chmod u-rx,go-r filename
chgrp 544 filename
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