Problem with getenv()

From: Roby (nada_at_nada.net)
Date: 03/31/04 

Date: Wed, 31 Mar 2004 15:25:20 GMT

Why are some of my environment variables ignored by getenv?
For example, entering set in a bash shell shows me a list which includes

OSTYPE=linux-gnu
SHLVL=2

getenv finds "SHLVL" but not "OSTYPE"

Code:
// evar.c
#include <stdlib.h>

int main( int argc, char **argv )
{
char *P;

if( argc != 2 )
    {
    puts( "Syntax: evar <e-var name>" );
    puts( " Displays the value assigned to e-var" );
    return( 1 );
    }

if( ( P = getenv( argv[ 1 ] ) ) == NULL )
    P = "( not found )";

printf( "%s = %s\n", argv[ 1 ], P );
return( 0 );
} /* main */

Thanks!

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