Exploring Linux and Shell Programming

What is the command to list files in a directory?

• show

• ls

• list

• dir

How do you change the permissions of a file in Linux?

• Edit the file with a text editor.

• Run the 'ls' command to view permissions.

• Use the 'chmod' command.

• Use the 'chown' command.

What does the command 'chmod 755 file.txt' do?

• Sets file permissions to rwxrwxrwx for file.txt.

• Sets file permissions to r--r--r-- for file.txt.

• Sets file permissions to rwxr-xr-x for file.txt.

• Sets file permissions to rw-r--r-- for file.txt.

Explain the purpose of the 'grep' command.

• To display system information and statistics.

• To create backups of files in a directory.

• To compile source code into executable files.

• The purpose of the 'grep' command is to search for and display lines that match a specified pattern in files or input.

What is a shell script?

• A shell script is a type of computer virus.

• A shell script is a graphical user interface.

• A shell script is a file with a series of commands for the shell to execute.

• A shell script is a programming language for web development.

How do you create a new directory in Linux?

• Use the command 'mkdir '.

• Use the command 'rmdir '.

• Type 'create ' in the terminal.

• Execute 'newdir ' to make a directory.

What is the difference between 'cp' and 'mv' commands?

• The 'cp' command compresses files, while the 'mv' command extracts files.

• The 'cp' command deletes files, while the 'mv' command copies files.

• The 'cp' command moves files, while the 'mv' command deletes files.

• The 'cp' command copies files, while the 'mv' command moves or renames files.

How can you view the contents of a file in the terminal?

• open filename.txt

• view filename.txt

• Use 'cat filename.txt', 'less filename.txt', or 'more filename.txt'.

• display filename.txt

What does the 'echo' command do in shell scripting?

• The 'echo' command compiles source code.

• The 'echo' command creates a new directory.

• The 'echo' command displays text or variable values to the terminal.

• The 'echo' command executes a script file.

How do you run a shell script in Linux?

• Run 'script.sh' without execute permissions.

• Use './script.sh' after setting execute permissions with 'chmod +x script.sh'.

• Use 'bash script.sh' without any prior setup.

• Execute the script by double-clicking it in the file manager.