Errors Reported Via Stderr And Stdout - HP -UX B6941-90001 Administrator's Reference Manual

Tuning, Troubleshooting, Security, and Maintenance
Troubleshooting: How ITO Reports Errors

Errors Reported via stderr and stdout

When starting ITO commands or scripts (for example, opcagt and
opcsv), errors which occur during the operation are reported to the
stderr/stdout device assigned to the calling shell. Errors reported by
terminal applications started from the application desktop, are also
displayed on stderr and stdout.
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