Linux Commands

These are the commands I tend to use on Linux servers, such as eevee in CSBL.
EEVEE has the unique ability to evolve into eight different creatures: Sylveon, Umbreon, Espeon, Leafeon, Glaceon, Vaporeon, Jolteon, or Flareon.

1. cd (change directory)

examples :

• cd ..: Move to the parent directory.
• cd ~: Move to the home directory.
• cd -: Move to the previous directory.

2. mkdir (make directory)

options :

• -p: Create parent directories as needed.

examples :

• mkdir [folder]: Creat a directory named folder.
• mkdir -p [parent]/[child]: Create the child directory along with the parent if it doesn’t exist.

3. rm (remove)

options :

• -r: Recursively delete directories and their contents.
• -f: Force deletion without confirmation.
• -i: Prompt before deleting.

examples :

• rm [file.txt]: Delete file.txt.
• rm -rf [folder]: Forcefully delete the folder directory and its contents

4. rmdir (remove directory)

options :

• --ignore-fail-on-non-empty: Ignore errors if the directory is not empty.

examples :

• rmdir [empty_folder]: Remove an empty directory named empty_folder

5. mv (move, or rename files or directories)

options :

• -i: Prompt before overwriting files.
• -u: Move only newer files.
• -v: Show details of the operation.

examples :

• mv [file.txt] /destination/: Move file.txt to the destination directory
• mv [old_name.txt] [new_name.txt]: Rename old_name.txt to new_name.txt

6. ls (list directory contents)

options :

• -a: Show all files, including hidden ones.
• -l: Display detailed file information (permissions, owner size, modification time).
• -h: Display sizes in a human-readable format.
• -R: Recursively list subdirectories.

examples :

• ls -alh: Show all files, detailed information, and sizes in a human-readable format.

7. cat (concatenate)

options :

• -n: Display line numbers.
• -E: Show $ at the end of each line.

examples :

• cat [file.txt]: Display the contents of file.txt.
• cat [file1.txt] [file2.txt] > [merged_file.txt]: Merge two files into one.
• cat -n [file.txt]: Display the contents of file.txt with line numbers.

8. nano

options :

• -m: Enable mouse support
• -v: Open files in read-only mode.
• -B: create a backup of the file.
• -C [directory]: Save backup files in a specific directory.

examples :

• nano [file.txt]: Open file.txt for editing.
• nano -v [file.txt]: Open file.txt in read-only mode.
• nano -m [file.txt]: Enable mouse support while editing file.txt.

9. python 3

options :

• -v or --version: Check the Python version.
• -c [code]: Execute a single line of Python code.
• -m [module]: Run a specific Python module.
• --help: Display help for Python commands.

examples :

• python3 -v: Check the Python 3 version.
• python3 -c "print('Hello World!)": Execute a single line of code.
• python3 [script.py]: Run the script.py file.