This is the command lptest that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
lptest — generate lineprinter ripple pattern
lptest [length] [count]
lptest writes the traditional “ripple test” pattern on standard output. In 96 lines, this
pattern will print all 96 printable ASCII characters in each position. While originally
created to test printers, it is quite useful for testing terminals, driving terminal ports
for debugging purposes, or any other task where a quick supply of random data is needed.
The length argument specifies the output line length if the default length of 79 is
The count argument specifies the number of output lines to be generated if the default count
of 200 is inappropriate. Note that if count is to be specified, length must also be
lptest appeared in 4.3BSD.
Use lptest online using onworks.net services