lptest - Generates the line printer ripple test pattern
lptest [length [count]]
Specifies the output line length when the 79-character
default line length is inappropriate. Specifies the number
of output lines to be generated when the default
200-line length is inappropriate. When count is specified,
length must also be specified.
The lptest command writes a traditional ripple test pattern
to the standard output. In 96 lines, a pattern containing
all 96 printable ASCII characters in each column
position of the line is printed. In the pattern, each
printed character is displaced rightward one charactercolumn
on each successive line. Originally created to test
printers, the ripple test pattern is also useful for testing
terminals, driving terminal ports during debugging,
and for any other diagnostic task where a quick output of
randomized data is needed.
Specifies the command path
Commands: lp(1), lpr(1)
lptest(8)
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