.\" Copyright (c) 1980 Regents of the University of California.
.\" All rights reserved. The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\" @(#)printenv.1 6.1 (Berkeley) %G%
printenv \- print out the environment
prints out the values of the variables in the environment. If a
is specified, only its value is printed.
is specified and it is not defined in the environment,
returns exit status 1, else it returns status 0.
sh(1), environ(7), csh(1)