long math functions on cygwin

Hello I am trying to compile some unix code on cygwin, using gcc version: * Reading specs from /usr/lib/gcc/i686-pc-cygwin/3.4.4/specs Configured with: /usr/build/package/orig/test.respin/gcc-3.4.4-3/configure --ver bose --prefix=/usr --exec-prefix=/usr --

Where are the rm, mkdir, tar, and the normal Unix command in the cygwin bash shell?!!!

Hi Can anyone help me with the installation of thr full utilities of cygwin. I 1. downloaded the setup.exe 2. Choose to install by downloading from the internet 3. and choose all modules to be installed in the curr package in one installation I get all the unix command available, and in the seco