Shell script also has dependencies: specific version of shell and CLI utilities. Shell script is a good thing when you need to write something quickly with hack

Shell script also has dependencies: specific version of shell and CLI utilities. Shell script is a good thing when you need to write something quickly with hacks but it is not a good foundation for init system or build system. They easily break if you redefine variables like IFS, add command aliases or use names with spaces or special characters.