You can override this with the PS_FORMAT environment variable. The use of BSD-style options will add process state (stat=STAT) to the default display and show the command args (args=COMMAND) instead of the executable name. (tname=TTY), the cumulated CPU time in hh:mm:ss format (time=TIME), and the executable name (ucmd=CMD). It displays the process ID (pid=PID), the terminal associated with the process It is fragile, subject to change, and thus should not be relied upon.īy default, ps selects all processes with the same effective user ID (euid=EUID) as the current user and associated with the same terminal as the invoker. This behavior is intended to aid in transitioning old scripts and habits. If the user named "x" does not exist, this ps may interpret the command as " ps aux" instead and print a The POSIX and UNIX standards require that " ps -aux" print all processes owned by a user named "x",Īs well as printing all processes that would be selected by the -a option. Note that " ps -aux" is distinct from " ps aux". There are some synonymous options, which are functionally identical, due to the many standards and ps implementations that this ps is Options of different types may be freely mixed, but conflicts can appear. GNU long options, which are preceded by two dashes.BSD options, which may be grouped and must not be used with a dash.UNIX options, which may be grouped and must be preceded by a dash.This version of ps accepts several kinds of options: If you want a repetitive update of the selection and the displayed information, use top(1) instead. Ps - report a snapshot of the current processes.ĭESCRIPTION ps displays information about a selection of the active processes. This Linux tutorial explains how to use the Linux ps command with syntax and arguments.
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