lptest - generate line printer ripple pattern
/usr/ucb/lptest [length [count]]
The lptest utility writes the traditional ripple test pattern to the standard output. In 96 lines, the ripple test pattern prints all 96 printable ASCII characters in each position. The ripple test pattern was originally created to test printers. It is also useful for testing terminals, driving terminal ports, debugging, and performing tasks that require a quick supply of random data.
This command is obsolete.
The following exit values are returned:
See attributes(5) for descriptions of the following attributes:
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Created 1996-2023 by Maxim Chirkov
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