### Question 19.8

How can I direct output to the printer?

Under Unix, either use `popen` (see question 19.30) to write to the `lp` or `lpr` program, or perhaps open a special file like `/dev/lp`. Under MS-DOS, write to the (nonstandard) predefined stdio stream `stdprn`, or open the special files PRN or LPT1.

References: PCS Sec. 5.3 pp. 72-74

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