Editing Ps (Unix) (section)

==Options==
<code>ps</code> has many options. On [[operating system]]s that support the [[Single UNIX Specification|SUS]] and [[POSIX]] standards, <code>ps</code> commonly runs with the options '''-ef''', where "-e" selects '''e'''very process and "-f" chooses the "'''f'''ull" output format. Another common option on these systems is '''-l''', which specifies the "'''l'''ong" output format.

Most systems derived from [[BSD]] fail to accept the SUS and POSIX standard options because of historical conflicts. (For example, the "e" or "-e" option will display [[environment variable]]s.) On such systems, <code>ps</code> commonly runs with the non-standard options '''aux''', where "a" lists all processes on a [[Computer terminal|terminal]], including those of other users, "x" lists all processes without [[controlling terminal]]s and "u" adds a column for the controlling user for each process. For maximum compatibility, there is no "-" in front of the "aux". "ps auxww" provides complete information about the process, including all parameters.