args: with args; stdenv.mkDerivation { name = "shebangfix-0.0"; buildInputs = [perl]; file = ./shebangfix.pl; phases = "buildPhase"; buildPhase = '' ensureDir $out/bin s=$out/bin/shebangfix cp $file $s chmod +wx $s ls -l $s perl $s $s ''; meta = { description = "replaces the #!executable with $#!correctpath/executable "; }; }