LS_COLORS 的比较好理解，用的是 ANSI 颜色代码；而 LSCOLORS 的就比较抽象了，根据 man ls 获得的资料显示，它们代表的意义如下：
The color designators are as follows:
a black b red c green d brown e blue f magenta g cyan h light grey A bold black, usually shows up as dark grey B bold red C bold green D bold brown, usually shows up as yellow E bold blue F bold magenta G bold cyan H bold light grey; looks like bright white x default foreground or background
Note that the above are standard ANSI colors. The actual display may differ depending on the color capabilities of the terminal in use.
The order of the attributes are as follows:
1. directory 2. symbolic link 3. socket 4. pipe 5. executable 6. block special 7. character special 8. executable with setuid bit set 9. executable with setgid bit set 10. directory writable to others, with sticky bit 11. directory writable to others, without sticky bit