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1 | .\" Copyright (c) 1980, 1990 The Regents of the University of California. |
2 | .\" All rights reserved. | |
3 | .\" | |
4 | .\" This code is derived from software contributed to Berkeley by | |
5 | .\" the Institute of Electrical and Electronics Engineers, Inc. | |
6 | .\" Redistribution and use in source and binary forms, with or without | |
7 | .\" modification, are permitted provided that the following conditions | |
8 | .\" are met: | |
9 | .\" 1. Redistributions of source code must retain the above copyright | |
10 | .\" notice, this list of conditions and the following disclaimer. | |
11 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
12 | .\" notice, this list of conditions and the following disclaimer in the | |
13 | .\" documentation and/or other materials provided with the distribution. | |
14 | .\" 3. All advertising materials mentioning features or use of this software | |
15 | .\" must display the following acknowledgement: | |
16 | .\" This product includes software developed by the University of | |
17 | .\" California, Berkeley and its contributors. | |
18 | .\" 4. Neither the name of the University nor the names of its contributors | |
19 | .\" may be used to endorse or promote products derived from this software | |
20 | .\" without specific prior written permission. | |
21 | .\" | |
22 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
23 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
24 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
25 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
26 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
27 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
28 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
29 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
30 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
31 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
32 | .\" SUCH DAMAGE. | |
33 | .\" | |
34 | .\" @(#)printenv.1 6.7 (Berkeley) 7/28/91 | |
35 | .\" | |
36 | .Dd July 28, 1991 | |
37 | .Dt PRINTENV 1 | |
38 | .Os BSD 3 | |
39 | .Sh NAME | |
40 | .Nm printenv , env | |
41 | .Nd print out the environment, set and print environment | |
42 | .Sh SYNOPSIS | |
43 | .Nm printenv | |
44 | .Op Ar name | |
45 | .Nm env | |
46 | .Op Fl | |
47 | .Op Ar name=value ... | |
48 | .Op Ar command | |
49 | .Sh DESCRIPTION | |
50 | .Nm Printenv | |
51 | prints out the names and values of the variables in the environment, | |
52 | with one name/value pair per line. If | |
53 | .Ar name | |
54 | is specified, only | |
55 | its value is printed. | |
56 | .Pp | |
57 | If a | |
58 | .Ar name | |
59 | is specified and it is not defined in the environment, | |
60 | .Nm printenv | |
61 | returns exit status 1, else it returns status 0. | |
62 | .Pp | |
63 | .Nm Env | |
64 | executes | |
65 | .Ar command | |
66 | after modifying the environment as | |
67 | specified on the command line. The option | |
68 | .Ar name=value | |
69 | specifies | |
70 | an environmental variable, | |
71 | .Ar name , | |
72 | with a value of | |
73 | .Ar value . | |
74 | The option | |
75 | .Sq Fl | |
76 | causes | |
77 | .Nm env | |
78 | to completely ignore the environment | |
79 | it inherits. | |
80 | .Pp | |
81 | If no command is specified, | |
82 | .Nm env | |
83 | prints out the names and values | |
84 | of the variables in the environment, with one name/value pair per line. | |
85 | .Sh SEE ALSO | |
86 | .Xr csh 1 , | |
87 | .Xr sh 1 , | |
88 | .Xr execvp 3 , | |
89 | .Xr environ 7 | |
90 | .Sh HISTORY | |
91 | The | |
92 | .Nm printenv | |
93 | command appeared in | |
94 | .Bx 3.0 . | |
95 | .Sh BUGS | |
96 | .Nm Env | |
97 | doesn't handle commands with equal (``='') signs in their | |
98 | names, for obvious reasons. |