Linux MCQs – LINUX commands – Part 3
Multiple choice questions and answers (MCQs) on Linux focuses on “Managing of users accounts and groups” to prepare for exams, interviews, and certifications, such as Redhat exam, CompTIA exam, Ubuntu / SuSE certification, LPI certification exam. These MCQs will easily prepare anyone to pass their Linux test.
1. Which of the following commands will allow the user to search a file for a particular expression?
A ls
B find
C grep
D touch
Example : If we want to search for the word “string” in “prog.txt” file
$ grep "string" ~/prog.txt
2. Which option of “tar” command is used to list the contents of an archive?
A xvf
B cvf
C ovf
D tvf
$ tar -tvf myArchive.tar
Meaning of each letter :
- t = table of contents
- v = verbose
- f = file
3. Which of the following commands can be used to change the default permissions for files and directories at creation time?
A umask
B chown
C chmod
D chgrp
$ umask u + w
This command sets the mask so that when a file is created, it has the permissions for the user to write.
4. “pwd” command displays _______ ?
A User’s password
B Contents of the password file
C The current working directory
D None of the above
5. Which of the following commands can be used to copy files to other systems?
A telnet
B ssh
C rsh
D ftp
$ ftp 192.168.0.1 Name: anonymous Password: 230 Login successful. Remote system type is UNIX. Using binary mode to transfer files. ftp> put file_name
We use the ‘put’ command to upload the file to other systems.
6. Which command is used to display all files, including hidden files in your directory and its subdirectories?
A ls –l
B ls –R
C ls –a
D ls –aR
$ ls –aR
This command allows to display all files, including hidden files in your directory and its subdirectories.
7. Which of these commands whose output contains the user ID?
A ls –l
B date
C help
D ls
$ ls -l total 116 drwxr-xr-x. 3 root root 3036 Jul 21 02:20 Music drwxr-xr-x. 4 root root 3036 Jul 21 02:20 Images drwxr-xr-x. 4 root root 2036 Jul 11 02:20 Web drwxr-xr-x. 4 root root 1036 Jul 11 02:20 bin drwxr-xr-x. 4 root root 1036 Jul 11 02:20 Desktop
Allows to display all files, including hidden files in your directory and its subdirectories.
8. Which commands display information about the disk space used by each file?
A ls –l
B ls -la
C ls -a
D du
$ du /home/my/test 32200 /home/my/test/play 1099 /home/my/test/system 23 /home/my/test/cours/java 59 /home/my/test/cours 410009 /home/my/test
9. Which commands to use to count the number of characters in a file ?
A grep
B wc
C count
D cut
The “wc” command, allows to count the number of characters in a file. The syntax of the command wc is as follow :
$ wc [options] file_name
10. Which commands to use to determine the path of an executable file?
A what
B wexec
C where
D which
“which” command is used to find the location of a program. The simplest form of the command is the following:
$ which <program_name>
For example, to find the location of your web browser such as Firefox, use the following command:
$ which firefox
- Linux MCQs – LINUX commands – Part 1
- Linux MCQs – LINUX commands – Part 2
- Linux MCQs – LINUX commands – Part 3
- Linux MCQs – LINUX commands – Part 4
- Linux MCQs – File systems
- Linux MCQs – File Management – Part 1
- Linux MCQs – File Management – Part 2
- Linux MCQs – Different File Types
- Linux MCQs – File Access Rights and Permissions – Part 1
- Linux MCQs – File Access Rights and Permissions – Part 2
- Linux MCQs – Init and Shutdown Process
- Linux MCQs – Managing of users accounts and groups
- Linux MCQs – Multiple Choice Questions and Answers – Process management
- Linux MCQs – Linux environment – Part 1
- Linux MCQs – Linux environment – Part 2
- Linux MCQs – Linux environment – Part 3
