Hi @wting thank you very much for autojump! Amazingly useful.
This PR makes the autojump.sh file more POSIX-compliant, which is useful in some OSs that link /bin/sh to secondary shells for performance improvements while still using bash|zsh|... as the default shell
References:
- https://wiki.ubuntu.com/DashAsBinSh
- padde/jump.vim#3