X3270OUTPUT environment variable

The  environment variable is passed from the emulator to a program run by the Script action. It indicates the file descriptor of a pipe used to send the result of actions executed by the emulator back to the script. The s3270 protocol defines the format of the data sent on this pipe and the input pipe indicated by.

These two variables are used only on POSIX-based systems.

Example
Questionable bash example, for a one-line result. echo >&$X3270INPUT "Query(LocalEncoding)" read -u$X3270OUTPUT result read -u$X3270OUTPUT prompt read -u$X3270OUTPUT ok if "$ok" = "ok" then success=1 else success=0 fi