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Annotation of 43BSDReno/usr.bin/printenv/printenv.1, revision 1.1.1.1

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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