Takes two scripts as a string and returns the first
if the current environment is unix bases (Linux, MacOS, etc.),
and the second if the current environment is not (windows systems)
ifUnix(script, altScript): string
Parameters
script: string
the script to use for unix
altScript: string
the script to use for windows
Returns string
The bash script, first if system is unix, second if windows.
Takes two scripts as a string and returns the first if the current environment is unix bases (Linux, MacOS, etc.), and the second if the current environment is not (windows systems)