PLBLinux Environment Considerations

Some Linux installations may apply special meanings to characters used in data entry. For example, the at (@) sign may be used as the system kill or cancel signal. Therefore, entering '@' within a shell script or other system level program (non-PL/B program) may kill or cancel the line entered. The following shows how to determine and change the current definitions:

Display system definitions for intr (interrupt - SIGINT), quit (SIGQUIT), erase (backspace - echo), kill (cancel - SIGKILL), eof (End Of File) and swtch (task switch).

stty -a

Change the kill system definition to Hex 18 (Ctrl-x) for Datapoint terminals:

stty kill '^x'

For more information on signals, consult the Linux Programmer's Reference Manual.

See Also: Compiler and Runtime Options