Smart :-) Since "wget https://raw.github.com/laurent22/massren/master/install/install.osx.sh*" https://raw.github.com/laurent22/massren/master/install/inst...

Smart :-) Since "wget https://raw.github.com/laurent22/massren/master/install/install.osx.sh*" https://raw.github.com/laurent22/massren/master/install/inst... comes out with certification error, because wget doesn't know github's certification, you need to either add an ignore-cert option or you might wanna change that option to 'curl -O https://raw.github.com/laurent22/massren/master/install/install.osx.sh*" https://raw.github.com/laurent22/massren/master/install/inst... which will not came out with an error. Also, curl is installed by default on MacOSX while wget is not :-) Cheers!