Quick Reference Guide

Command Syntax Overview 17
• File output is specified by the -o < filename > command,
where <
filename > is the name of the output file.
Log Files
The -l <filename> or --logfile <filename> option records
information output on the command line to the specified log file. Each new
line of output is preceded by a time stamp.
If the log file already exists, information is appended to the file. This allows
multiple tools to use the same log file to record information. This option
should be used instead of redirection to record a utility’s output since time
data can assist with task diagnosis.
The log duplicates all standard output and error information to the specified
file. Each log file begins with a time stamp and utility name. For example,
YYYY/MM/DD HH:MM:SS <utilname> - <output text>.
The following is an example of the logging behavior:
2003/11/28 10:23:17 syscfg - option1=on
2003/11/28 10:23:17 syscfg - option2=on
2003/11/28 10:23:17 syscfg - option3=off
NOTE: The log files may contain sensitive information such as passwords and
authentication information. To protect such information, it is recommended that
only the administrator access the log files.
Help Option
The -h and --help options display general usage information for the utility.
If the argument matches a valid option, that option's usage information is
displayed. If the option has arguments, the arguments are displayed,
separated by a | character. If the argument does not match a valid option,
a usage error is given (and usage information is displayed). This option
cannot be replicated.