Linux command
lolcat 命令
文本
涉及管道、覆盖或删除，执行前请先确认路径和参数。
常用示例
Print text in rainbow colors
echo "Hello World" | lolcat
Display a file
lolcat [file]
Animate the rainbow effect
echo "Animated!" | lolcat -a
Adjust animation speed
echo "Fast rainbow" | lolcat -a -d [1]
Set the rainbow spread
lolcat -p [3.0] [file]
Force color output
lolcat -f [file] | less -R
说明
lolcat concatenates files or standard input to standard output, adding a rainbow color gradient. It works like cat but applies ANSI color codes for a colorful twist to terminal output. Commonly paired with ASCII art generators like figlet or cowsay, lolcat is popular for creating visually striking terminal outputs, system banners, and adding personality to shell scripts.
参数
- -a, --animate
- Animate the rainbow effect
- -d _duration_, --duration _duration_
- Animation duration in seconds per line (default: 12)
- -s _speed_, --speed _speed_
- Animation speed (default: 20.0)
- -p _spread_, --spread _spread_
- Rainbow spread (default: 3.0)
- -F _freq_, --freq _freq_
- Rainbow frequency (default: 0.1)
- -S _seed_, --seed _seed_
- Rainbow seed, 0 = random (default: 0)
- -i, --invert
- Invert foreground and background
- -t, --truecolor
- Use 24-bit truecolor (default on supported terminals)
- -f, --force
- Force color output even when stdout is not a terminal
- -h, --help
- Display help message
- -v, --version
- Print version and exit
FAQ
What is the lolcat command used for?
lolcat concatenates files or standard input to standard output, adding a rainbow color gradient. It works like cat but applies ANSI color codes for a colorful twist to terminal output. Commonly paired with ASCII art generators like figlet or cowsay, lolcat is popular for creating visually striking terminal outputs, system banners, and adding personality to shell scripts.
How do I run a basic lolcat example?
Run `echo "Hello World" | lolcat` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -a, --animate do in lolcat?
Animate the rainbow effect