read one line
line copies one line (up to a new line) from the standard
input and writes it on the standard output.
line is often used within shell scripts to read from the
line always prints at least a new line.
line returns 0 on successful completion; 1 on end-of-file
detected on input.
line is conformant with:
AT&T SVID Issue 2;
X/Open CAE Specification, Commands and Utilities, Issue 4, 1992: note that this command is marked as to be
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SCO OpenServer Release 5.0.7 -- 11 February 2003