sh: clear : command not found !!!

[prajwal]

hi... i'm running a simple user created shell. I have a main prog which forks and calls execvp() for all commands in it.. all commands seem to be working fine. but i'm not able to use system("clear") command. i'm getting
sh: clear : command not found.
(where clear is a executable file in pwd created using the same system("clear").) but if i try ./clear then that perticular module works correctly just like ./ls or ./cat etc all being executable file.
i have also set the environmental variable using setenv("PATH","/home/prajwal/shellfiles",1); can u plz tell me why i'm not able to use clear?

[Rubberman]

'clear' is normally found in /usr/bin, so if you have changed your PATH environment as shown, it won't find it. You need to include /usr/bin in your PATH. Since prefacing the command with the current directory, as in ./clear, seems to work, I suspect your working directory is /usr/bin.