Routine Name:	printenv

Description:	Displays value of operating-system environmental variable.

Usage:		printenv environment-variable

Example:	genesis >  printenv SIMPATH
		SIMPATH=. /usr/genesis/startup

Notes:		This is a GENESIS implementation of the operating system
		command printenv, which displays the value of a particular
		operating system environmental variable.  Unlike its
		operating-system counterpart, printenv from within GENESIS
		requires that you supply a variable name (outside of GENESIS,
		printenv with no arguments displays the list of all your
		environmental variables).

		Printenv sends its output directly to the screen.  If you need
		to capture the information that printenv displays in a GENESIS
		variable, use the getenv routine instead.

See also:	getenv, setenv

