UNIX file command

Is there a built in function in PHP that mimicks the UNIX file command? For instance, I run : file blah.jpg and I get this: blah.jpg: JPEG image data, JFIF standard 1.01, resolution (DPI), 72 x 72 I suspect this isn't worth its own module...perhaps it is. Can someone suggest where I might add this functionality? I'll gladly write a new module for it if it does not exist. Thanks. -- Michael C. Montero Chief Technology Officer Community Connect Inc. Co-founder MMontero@Mail.CommunityConnect.com -=-=-=-=-= Community Connect Inc. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- The Premier Source of Interactive Online Communities 149 Fifth Avenue http://www.CommunityConnectInc.com/ New York, NY 10010 http://www.AsianAvenue.com/ http://www.BlackPlanet.com/ Click into Asian America The World Is Yours http://www.MiGente.com/ http://www.DiversityJobMarket.com/ The Power of Latinos In partnership with The New York Times ----- Your Message May Appear Below This Line