Podcast
Questions and Answers
Match the command with its function:
Match the command with its function:
mkdir = Create a new directory cd = Change directory pwd = Print working directory rmdir = Remove an empty directory
Match the output with the corresponding command:
Match the output with the corresponding command:
cd .. = ahmed@the-game:/mnt/collection1> cd ~ = ahmed@the-game:~> pwd = /mnt/collection1/ogg rmdir student = The directory will be deleted
Match the command with its usage:
Match the command with its usage:
mkdir student/language/Pascal = Create a subdirectory in language cd /mnt/collection1/ogg = Change to a specific directory cd .. = Change to parent directory rm -r teacher = Delete a directory with contents
Match the directory change command with the description:
Match the directory change command with the description:
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Match the example with the respective command:
Match the example with the respective command:
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Match the command with its requirement:
Match the command with its requirement:
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Match the output with the corresponding command:
Match the output with the corresponding command:
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Match the command with its result:
Match the command with its result:
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Match the command with its effect:
Match the command with its effect:
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Match the command with its appropriate action:
Match the command with its appropriate action:
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Study Notes
Linux File System and Commands
- Linux file system allows for structured storage of information using files consisting of bits ('0' or '1').
- Rules for naming files in Linux include:
- No spaces allowed; use underscores instead.
- Names must start with an alphabet character.
- Special characters like $, *, %, @, /, etc., are not permitted.
- File names are case-sensitive (e.g., "City", "city", and "CITY" are distinct).
File Creation and Management
-
Use
catcommand to create a file:- Syntax:
$ cat > file_name - Save contents with
Ctrl + Dto exit. - Example:
$ cat > city.txtcreates a text file named city.txt.
- Syntax:
-
Display file contents:
- Use
cat file_nameto view contents on the screen.
- Use
Editing and Modifying Files
-
Add data to an existing file:
- Use
catcommand and save withCtrl + D.
- Use
-
Display contents of multiple files:
- Use
$ cat file1 file2to view combined contents.
- Use
-
Create an empty file:
- Use
touchcommand:$ touch filename.
- Use
Viewing File Contents
- Use
moreto view file contents one screen at a time, with options for line numbers and screen size.
Moving and Renaming Files
- Use
mvcommand for moving and renaming files:- Syntax:
$ mv [options] source destination. - Moving example:
$ mv ~/temp/file.txt .moves a file to the current directory. - Renaming example:
$ mv file.txt ~/temp/file2.txtrenames a file.
- Syntax:
Copying Files
- Use
cpcommand to copy files or directories:- Syntax:
$ cp [options] source destination. - Copying example:
$ cp file.txt ~/temp/copies file to a directory.
- Syntax:
File Deletion
- Use
rmcommand to delete files:- Syntax:
$ rm [options] file(s). - Example:
$ rm file1.txtdeletes a specified file.
- Syntax:
Working with Directories
-
Creating directories:
- Use
mkdir directory-nameto create new directories (e.g.,$ mkdir student). - Create multiple directories at once:
$ mkdir student teacher administration.
- Use
-
Change directories:
- Use
$ cd directoryto navigate into a directory. - Use
$ cd ..to go to the parent directory. -
$ cdor$ cd ~returns to the home directory.
- Use
-
Display current directory:
- Use
pwdcommand to show the current working directory path.
- Use
Removing Directories
- Use
rmdirto remove empty directories:- Example:
$ rmdir student.
- Example:
- To delete a directory and its contents, use:
-
$ rm -r directory_name(use cautiously).
-
Summary
- Mastering these commands enhances efficiency in managing files and directories on Linux.
- Familiarization with command-line syntax is crucial for effective use of the operating system.
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Description
Test your knowledge on the Linux file system and command usage. This quiz covers the essential rules for naming files in Linux, including naming conventions and case sensitivity. Challenge yourself to understand file creation and management in Linux.
