hello guys, i want to install netcat on my solaris. after i tar and gunzip netcat i'm confuse what do i must to do ? please help me to install netcat on my solaris. I'm beginner 
You need to provide more information for somebody to help you. Are you on a SPARC or an X86 platform? What version of Solaris?
You can download a ready-to-install package of netcat for different Solaris releases from Sunfreeware - Free and Open Source Software (FOSS) for Sun Microsystem's Solaris