Case sensitivity in the QOpenSys file system
Unlike the "root" (/) file system, the QOpenSys file system distinguishes between uppercase or lowercase characters when searching for object names.
For example, a character string supplied in all uppercase characters will not match the same character string in which any of the characters is lowercase.
This case sensitivity allows you to use duplicate names, provided there is some difference in uppercase and lowercase of the characters making up the name. For example, you can have an object named Payroll, an object named PayRoll, and an object named PAYROLL in the same directory in QOpenSys.