Some examples of system variables include:

• Variables related to the operating system and hardware environment, such as the name of the hardware platform, machine class, operating system version, and window manager being used

• Environment variables like the number of processors, current date, and current time, which provide system-level information

• Workflow-related system variables such as JOBCLASS in IBM z/OS, which can be used to specify job classes dynamically in workflows

• Predefined system variables in automation platforms, including date and time variables, loop counters, Excel-related variables, email variables, and PDF variables

• Windows environment variables like CSIDL_WINDOWS, which points to the Windows directory or system root path

These system variables are typically predefined by the system or platform and can be used to access system-specific information or control system behavior in scripts, workflows, or automation tasks