[GRLUG] sugarcrm silent upgrade problem

[Eric Beversluis]

I'm trying to use the SugarCRM community edition silent upgrade. They
say to use this command:

Usage: php -f silentUpgrade.php [upgradeZipFile] [logFile]
[pathToSugarInstance] [adminUser]

I guess I'm not running it from the right place or something, since I
keep getting "php: command not found" reply.

I've tried running it from a number of places including the Document
Root. 

Can anyone tell what I'm missing?

Thanks.