Define Alternative Input and Output Sources

UNIX Jobs › Define Alternative Input and Output Sources

Define Alternative Input and Output Sources

All UNIX programs run by a shell are connected to the following input and output streams:

Stream	Default Source
Standard input stream	Keyboard
Standard output stream	Screen
Standard error output stream	Screen

To define alternative input and output sources, specify the following environment variables in your job definition:

STDIN, to specify an alternative input stream, for example:
```
ENVAR STDIN=/path/name
```
STDOUT, to specify an alternative output stream, for example:
```
ENVAR STDOUT=/path/name
```
STDERR, to specify an alternative error output stream, for example:
```
ENVAR STDERR=/path/name
```

In the preceding examples, name is the file to be used as the standard input or output stream and path is the location of the file.

The STDOUT file name displays when you list the workload object with the LISTAPPL or APPLJOB command. The STDOUT file name may be different from what was specified in STDOUT=. For example:

ENVAR STDOUT=$AGENTPATH/stdout.txt

In this example, the environment variable AGENTPATH equals '/root/home/2'; therefore, the file name resolves to StdOut=/root/home/2/stdout.txt in the output of the workload object.

This is applicable only for Windows NT and all UNIX agents.

The STDERR file name displays when you list the workload object with the LISTAPPL or APPLJOB command. The STDERR file name may be different from what was specified in STDERR=. For example:

ENVAR STDERR=$AGENTPATH/stderr.txt

In this example, the environment variable AGENTPATH equals '/root/home/2'; therefore, the file name resolves to StdErr=/root/home/2/stderr.txt in the output of the workload object.

This is applicable only for Windows NT and all UNIX agents.