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Annotation of 43BSDReno/usr.bin/printenv/printenv.1, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980, 1990 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"     @(#)printenv.1 6.4 (Berkeley) 7/24/90
        !            19: .\"
        !            20: .Dd July 24, 1990
        !            21: .Dt PRINTENV 1
        !            22: .UC
        !            23: .Sh NAME
        !            24: .Nm printenv , env
        !            25: .Nd print out the environment, set and print environment
        !            26: .Sh SYNOPSIS
        !            27: .Nm printenv
        !            28: .Op Ar name
        !            29: .Nm env
        !            30: .Op Fl
        !            31: .Op Ar name=value \&...
        !            32: .Op Ar command
        !            33: .Sh DESCRIPTION
        !            34: .Nm Printenv
        !            35: prints out the names and values of the variables in the environment,
        !            36: with one name/value pair per line.  If
        !            37: .Ar name
        !            38: is specified, only
        !            39: its value is printed.
        !            40: .Pp
        !            41: If a
        !            42: .Ar name
        !            43: is specified and it is not defined in the environment,
        !            44: .Nm printenv
        !            45: returns exit status 1, else it returns status 0.
        !            46: .Pp
        !            47: .Nm Env
        !            48: executes
        !            49: .Ar command
        !            50: after modifying the environment as
        !            51: specified on the command line.  The option
        !            52: .Ar name=value
        !            53: specifies
        !            54: an environmental variable,
        !            55: .Ar name  ,
        !            56: with a value of
        !            57: .Ar value  .
        !            58: The option
        !            59: .Sq Fl
        !            60: causes
        !            61: .Nm env
        !            62: to completely ignore the environment
        !            63: it inherits.
        !            64: .Pp
        !            65: If no command is specified,
        !            66: .Nm env
        !            67: prints out the names and values
        !            68: of the variables in the environment, with one name/value pair per line.
        !            69: .Sh SEE ALSO
        !            70: .Xr csh 1 ,
        !            71: .Xr sh 1 ,
        !            72: .Xr execvp 3 ,
        !            73: .Xr environ 7
        !            74: .Sh HISTORY
        !            75: .Nm Printenv
        !            76: appeared in 3 BSD.
        !            77: .Sh BUGS
        !            78: .Nm Env
        !            79: doesn't handle commands with equal (``='') signs in their
        !            80: names, for obvious reasons.

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