The "bad syntax, perhaps a bogus '-'?" error message is commonly seen when using the ps command on Linux systems. This error is usually caused by using an invalid option or flag with the ps command.
The ps command has a number of options and flags that can be used to control its behavior. Some of these options are single-letter options (e.g., -e), while others are multi-letter options (e.g., --format).
If you see the "bad syntax" error message when using the ps command, it means that you have used an invalid option or flag. This can be caused by either typing the option incorrectly, or using a flag that is not supported by the ps command.
To fix this error, you need to check the syntax of the ps command and ensure that you are using the correct options and flags. You can also refer to the ps man page or the /usr/share/doc/procps-3.2.7/FAQ file for more information about the available options and flags for the ps command.
To view the ps man page, you can use the man command, like this:
man ps
To view the /usr/share/doc/procps-3.2.7/FAQ file, you can use the less command, like this:
less /usr/share/doc/procps-3.2.7/FAQ
Alternatively, you can also use the --help flag with the ps command to view a list of available options and flags.
ps --help
This will display a list of options and flags that can be used with the ps command, along with a brief description of each one.