-O Command-line Option

The -O option controls the output from commands that might display large amounts of information. If you do not specify -O, the information scrolls by on the screen too quickly to be read.

The following table lists ways to use the -O option.

Option	Description
-O	All output is displayed
-O-	Only errors are displayed
-O@file.txt	Errors are displayed and all output is appended to the specified file
"-O&file.txt"	No output is displayed and all output is appended to the specified file. Note that the quotation marks are required on Windows NT platforms, and optional on others. If the named file already exists, output is appended to that file.
-O&-	No output is displayed