In the stty documentation, the following is mentioned:
[-]icrnl
translate carriage return to newline[-]inlcr
translate newline to carriage return* [-]ocrnl
translate carriage return to newline* [-]onlcr
translate newline to carriage return-newline
Notice how the "cr" in icrnl and inlcr and ocrnl mean "carriage return" but it means "carriage return-newline" in onlcr.
Is this a typo, or is this how onlcr really works (i.e.
it translates \n to \r\n)?
Best Answer
It is not a typo, it is in fact what POSIX also says:
The fact that the mode isn't called "onlcrnl" is probably just to keep the setting names short and consistent (or at least consistently short).
The Rationale section tells us that the standard for
sttywas adopted from System V, so I'm assuming there was backward compatibility to older systems to care about too.