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env.1 (876B)
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1 .Dd October 8, 2015
2 .Dt ENV 1
3 .Os sbase
4 .Sh NAME
5 .Nm env
6 .Nd modify the environment, then print it or run a command
7 .Sh SYNOPSIS
8 .Nm
9 .Op Fl i
10 .Oo Fl u Ar var Oc ...
11 .Oo Ar var Ns = Ns Ar value Oc ...
12 .Oo Ar cmd Oo arg ... Oc Oc
13 .Sh DESCRIPTION
14 .Nm
15 unsets each
16 .Ar var ,
17 then adds or sets each
18 .Ar ( var , value )
19 tuple in the environment.
20 .Pp
21 If
22 .Ar cmd
23 is given, it is executed in this new environment;
24 otherwise, the modified environment is printed to stdout.
25 .Sh OPTIONS
26 .Bl -tag -width Ds
27 .It Fl i
28 Completely ignore the existing environment and execute
29 .Ar cmd
30 only with each
31 .Ar ( var , value )
32 tuple specified.
33 .It Fl u Ar var
34 Unset
35 .Ar var
36 in the environment.
37 .El
38 .Sh SEE ALSO
39 .Xr printenv 1 ,
40 .Xr putenv 3 ,
41 .Xr environ 7
42 .Sh STANDARDS
43 The
44 .Nm
45 utility is compliant with the
46 .St -p1003.1-2013
47 specification.
48 .Pp
49 The
50 .Op Fl u
51 flag is an extension to that specification.
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