If you want to redirect STDOUT and STDERR of an OS/2 command, you should always redirect STDERR first. If, instead, the reverse of this is used, some programs (including CMD.EXE) sometimes write their error messages to the display regardless of the redirection of STDERR.
To redirect STDOUT and STDERR into the same FILE use the following construct:
"attrib a:test.cmd 2>>errFile 1>>&2"
To redirect STDOUT and STDERR into the same PIPE use the following construct:
"attrib a:test.cmd 2>&1 | pipeit.cmd"
Please note that other command line interpreter, such as 4OS2, for instance, may use another syntax for the redirection of STDOUT and/or STDERR.
Note: See also STDOUT / STDERR