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          ERROUT [/f stderrfile] command [> stdoutfile]

The "command" is the base name of the  DOS  .EXE, .COM,  or  batch file
whose error output will be redirected.
The "/f stderrfile" option is the name of the file  or  device to which
standard error output is redirected. If this option is used without  /f
option, both standard-error output  and standard output  are redirected
to "stdoutfile".
The ">stdoutfile" option is the name  of the file  or  device  to which
standard output is redirected.
If either option is not specified, the corresponding output is directed
to the terminal as usual.