banner prints up to 10 chars of each
string in large letters on the standard output.
The options are:
-b bg
Use bg as the background color (character) rather than the default “ ”.
-f fg
Use fg as the foreground color (character) rather than the default “#”. If fg is “-”, then the actual letter being printed is used as the foreground color in the same way that LPD does it. The results are quite variable.
-l
Use the more attractive LPD font instead of the traditional banner font.