Os - (Search) Path Environment Variable
1 - About
The PATH environment variable allows to not type the entire path of a command. (executable binary file)
It contains a list of directory path where the operating system will search for executable files.
See: File System - Path
2 - Articles Related
3 - Os
3.1 - Unix
Unix paths use a colon to split entries.
3.2 - Windows
Windows paths use a semi-colon to split entries.