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1.3.3 Standard error (stderr)

Most UNIX and GMT programs will on occasion write error messages. These are typically written to a separate data stream called stderr and can be redirected separately from the standard output (which goes to stdout). To redirect error messages we use

UNIXprogram >& errors.log

When we want to save both program output and error messages to separate files we use the following syntax:

(GMTprogram > output.d) >& errors.log


next up previous contents index
Next: 1.3.4 File name expansion Up: 1.3 The UNIX Environment: Previous: 1.3.2 Piping ()   Contents   Index
Paul Wessel 2006-05-31