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.\"	@(#)printenv.1	8.1 (Berkeley) 6/6/93
.\" $FreeBSD$
.\"
.Dd June 6, 1993
.Dt PRINTENV 1
.Os BSD 3
.Sh NAME
.Nm printenv , env
.Nd print out the environment, set and print environment
.Sh SYNOPSIS
.Nm printenv
.Op Ar name
.Nm env
.Op Fl
.Op Fl i
.Op Ar name=value ...
.Op Ar command
.Sh DESCRIPTION
.Nm Printenv
prints out the names and values of the variables in the environment,
with one name/value pair per line.  If
.Ar name
is specified, only
its value is printed.
.Pp
If a
.Ar name
is specified and it is not defined in the environment,
.Nm printenv
returns exit status 1, else it returns status 0.
.Pp
Some shells may provide a builtin
.Nm
command which is similar or identical to this utility.
Consult the
.Xr builtin 1
manual page.
.Pp
.Nm Env
executes
.Ar command
after modifying the environment as
specified on the command line.  The option
.Ar name=value
specifies
an environment variable,
.Ar name  ,
with a value of
.Ar value  .
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl i
Execute the
.Ar command
with only those environment values specified.
The environment inherited
by
.Nm env
is ignored completely.
.It Fl
Identical to the
.Fl i
option, available for backward compatibility.
.El
.Pp
If no command is specified,
.Nm env
prints out the names and values
of the variables in the environment, with one name/value pair per line.
.Sh SEE ALSO
.Xr csh 1 ,
.Xr sh 1 ,
.Xr execvp 3 ,
.Xr environ 7
.Sh HISTORY
The
.Nm printenv
command appeared in
.Bx 3.0 .
.Sh BUGS
.Nm Env
doesn't handle commands with equal (``='') signs in their
names, for obvious reasons.