print

v. To output, even if to a screen. If a hacker says that a program printed a
message , he means this; if he refers to printing a file, he probably means
it in the conventional sense of writing to a hardcopy device (compounds like
print job and printout , on the other hand, always refer to the latter).
This very common term is likely a holdover from the days when printing
terminals were the norm, perpetuated by programming language constructs like
C 's printf (3). See senses 1 and 2 of tty.