//sets clipping planes for multiple cameras
float $distance = 10000;//value to clip to

string $cameras[] = {"front","side","top","persp"};
int $size = `size $cameras`;
for ($a=0;$a<$size;$a++)
{
 string $camera[] = `listRelatives -f -c -type "camera" $cameras`;
 setAttr ($cameras[$a]+".farClipPlane") $distance;
}

//end