Wiktionary
command lines
n. (plural of command line English)
Usage examples of "command lines".
Presumably there are godlike Unix hackers somewhere in the world who don't need to use these little scripts and options files as crutches, and who can simply pound out fantastically complex command lines without making typographical errors and without having to spend hours flipping through documentation.
After we'd spent a while pounding out command lines and hitting that ENTER key and spawning dull, failed universes, we would start to long for an OS that would go all the way to the opposite extreme: an OS that had the power to do everything--to live our life for us.
The no history size command resets the buffer size to the default of 10 command lines.