cmd = "export version_postfix='#{version_postfix}' && cd #{project_id}/#{src} && rm -rf *.gz && rm -rf MANIFEST && perl Build.PL --quiet 1>/dev/null 2>module_build.err.log && ./Build realclean && perl Build.PL --quiet 1>/dev/null 2>module_build.err.log && ./Build manifest --quiet 2>/dev/null 1>/dev/null && ./Build dist --quiet 1>/dev/null"