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80d03a1e KM |
1 | .\" Copyright (c) 1983 Regents of the University of California. |
2 | .\" All rights reserved. The Berkeley software License Agreement | |
3 | .\" specifies the terms and conditions for redistribution. | |
4 | .\" | |
63dd26ef | 5 | .\" @(#)ttynam.3 6.1 (Berkeley) %G% |
80d03a1e | 6 | .\" |
63dd26ef | 7 | .TH TTYNAM 3F "" |
80d03a1e KM |
8 | .UC 5 |
9 | .SH NAME | |
10 | ttynam, isatty \- find name of a terminal port | |
11 | .SH SYNOPSIS | |
12 | .B character*(*) function ttynam (lunit) | |
13 | .sp 1 | |
14 | .B logical function isatty (lunit) | |
15 | .SH DESCRIPTION | |
16 | .I Ttynam | |
17 | returns a blank padded path name | |
18 | of the terminal device associated with logical unit | |
19 | .IR lunit . | |
20 | .PP | |
21 | .I Isatty | |
22 | returns | |
23 | .B .true. | |
24 | if | |
25 | .I lunit | |
26 | is associated with a terminal device, | |
27 | .B .false. | |
28 | otherwise. | |
29 | .SH FILES | |
30 | /dev/\(** | |
31 | .br | |
32 | .ie \nM /usr/ucb/lib/libU77.a | |
33 | .el /usr/lib/libU77.a | |
34 | .SH DIAGNOSTICS | |
35 | .I Ttynam | |
36 | returns an empty string (all blanks) if | |
37 | .I lunit | |
38 | is not associated with a terminal device in directory `/dev'. |