ubuntu cmatrix自定义设置

Installing cmatrix on Ubuntu
To customize cmatrix, you first need to install it. On Ubuntu, run the following commands to update your package list and install cmatrix:

sudo apt-get update
sudo apt-get install cmatrix

This installs the latest version of cmatrix available in Ubuntu’s repositories.

Customizing cmatrix via Command-Line Parameters
You can adjust cmatrix’s behavior instantly using command-line flags. Here are key options:

• Bold Characters: Use -b for occasional bold text or -B for all bold text.
• Colors: Add -c to enable colored output. Use -C followed by a color code (e.g., -C green, -C magenta) to set the matrix color.
• Speed: Control scrolling speed with -u. Lower values (e.g., -u 2) make the matrix faster; higher values (e.g., -u 9) slow it down.
• Matrix Size: Use -s followed by dimensions (e.g., -s 5 for a 5x5 grid) to resize the matrix.
• Text Overlay: Add a custom message with -t (e.g., -t "Hello Matrix").

Example command for a fast, bold, green matrix with a message:

cmatrix -b -C green -u 2 -t "Welcome to My Matrix"

These parameters override default settings for one-time use.

Persistent Customization with ~/.cmatrixrc
For permanent changes, edit the configuration file ~/.cmatrixrc (creates the file if it doesn’t exist). Use a text editor like nano:

nano ~/.cmatrixrc

Add or modify these options:

• Colors: Set colors to a semicolon-separated list of ANSI codes (e.g., colors=0; 34; 42 for black background, green text, cyan accents).
• Matrix Size: Define width (columns) and height (rows) (e.g., width=100, height=30).
• Update Speed: Adjust update_interval in milliseconds (e.g., update_interval=100 for slower scrolling).
• Decorations: Customize deco_char (e.g., deco_char=*) and deco_color (e.g., deco_color=color7) to add decorative characters.
• Scroll Bar: Enable with scrollbar=yes.

Example ~/.cmatrixrc for a sleek, blue-themed matrix:

colors=0;
    34;
    42
width=80
height=24
update_interval=100
deco_char=*
deco_color=color7
scrollbar=yes

Save the file and exit (Ctrl+O, Enter, Ctrl+X in nano). The next time you run cmatrix, it will use these settings.

Advanced Tips for Enhanced Effects

• Rainbow Mode: Pipe cmatrix output to lolcat for a rainbow effect. Install lolcat first (sudo apt-get install lolcat), then run:

  cmatrix | lolcat
  

• Lambda Mode: Add the -m lambda flag to display Lambda symbols (common in hacker-themed visuals):

  cmatrix -m lambda
  

• Screen Saver Mode: Use -s to run cmatrix in screen saver mode (press any key to exit).

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