@echo off setlocal if "%1" == "--help" ( echo Usage: rbenv exec ^ [arg1 arg2...] echo. echo Runs an executable by first preparing PATH so that the selected Ruby echo version's `bin' directory is at the front. echo. echo For example, if the currently selected Ruby version is 1.9.3-p327: echo rbenv exec bundle install echo. echo is equivalent to: echo PATH="$RBENV_ROOT/versions/1.9.3-p327/bin:$PATH" bundle install echo. EXIT /B ) rem Implementation of this command is in the rbenv.vbs file .