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|man pages section 1: User Commands Oracle Solaris 10 8/11 Information Library|
- 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This command is obsolete.
Specifies the length of the output line in characters. 79 characters is the default.
Specifies the number of output lines. 200 lines is the default. If count is specified, length must also be specified.
The following exit values are returned:
An error occurred.
See attributes(5) for descriptions of the following attributes: