Goal To install Juno for convenient development in Julia.
Problem After Juno installation, I received the following error.
Analysis From the error message, the system had tried to find an executable file julia, which would then be executed by the shell /bin/sh. Nonetheless, it's absent from the system's environment $PATH, so Juno couldn't find it.
I've only changed my $PATH in ZSHRC, which is user-specific.
Solution This Stack Overflow question about $PATH setting on *nix has provided various solution.