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34 .\" @(#)printenv.1 8.1 (Berkeley) 6/6/93
42 .Nd print out the environment, set and print environment
48 .Op Ar name Ns = Ns Ar value ...
49 .Op Ar utility Op Ar argument ...
53 utility prints out the names and values of the variables in the environment,
54 with one name/value pair per line.
60 Some shells may provide a builtin
62 command which is similar or identical to this utility.
71 after modifying the environment as
72 specified on the command line.
74 .Ar name Ns = Ns Ar value
76 an environment variable,
81 The options are as follows:
82 .Bl -tag -width indent
86 with only those environment values specified.
87 The environment inherited
90 is ignored completely.
93 If no utility is specified,
95 prints out the names and values
96 of the variables in the environment, with one name/value pair per line.
100 utility is sometimes useful with the
104 The only difference between
105 .Dq Li #!/usr/local/bin/foo
107 .Dq Li "#!/usr/bin/env\ /usr/local/bin/foo"
108 is that the latter works even if
109 .Pa /usr/local/bin/foo
110 is itself interpreted.
113 this way also allows one to reference
116 as well as set up the environment as desired.
122 environment variable is used to locate the requested
124 if the name contains no
131 An exit status of 126 indicates
133 was found, but could not be executed.
134 An exit status of 127 indicates
142 option as a synonym for
162 utility doesn't handle utility arguments with equal (``='') signs in their
163 names, for obvious reasons.