GUI for shell scripts

what GUI can be used with shell scripting
for example if i want to say hello in prompted window
thnx in advance

zenity command will solve your requirement

Well, do you just want to accept some values from a user using a shell script?

thx ..
zenity is the one that the unix use i saw thats a little ambiguous !
can u tell for example an echo hello to be in prompted window how this can be done ?