![]() ![]() O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers. On Solaris and AIX, the corresponding command is ps ef, and the output has a. Get Linux Pocket Guide now with the O’Reilly learning platform. To obtain information on all processes on a system, use the command ps aux. Below is a pretty dirty and quick script to loop through each process that is open and grab the Size, Rss, Pss and Shared Clean/Dirty usage. If you have a newer kernel it should support /proc/pid/smaps which gives you some detailed information on each processes memory usage. Some typical uses are to look at all processes for a user (e.g. 8 Obtaining memory usage through ps is pretty unreliable. Remember, you can extract information more finely from the output of ps using grep or other filter programs. Of course the most used utility by anyone is the ps command. Particular processes 1, 2, and 3505: $ ps -p1,2,3505Īll processes with command lines truncated to screen width: $ ps -efĪll processes with full command lines: $ ps -efwwĪnd all processes in a threaded view, which indents child processes below their parents: $ ps -efH When -f is set, the full command line is used. The POSIX and UNIX standards require that ps -aux print all processes owned by a user named x, as well as printing all processes that would be selected by. pgrep -f keyword From the man page: -f The pattern is normally only matched against the process name. ![]() That makes pgrep match keywords in the whole command (including arguments) instead of just the process name. If the options seem arbitrary or inconsistent, it’s because the supplied ps command (GNU ps) incorporates the features of several other Unix ps commands, attempting to be compatible with all of them.Īll of user smith’s processes: $ ps -U smithĪll occurrences of a program: $ ps -C program_name 6 Answers Sorted by: 287 You can use pgrep as long as you include the -f options. Output: UID PID PPID C STIME TTY TIME CMD 0 1 0 0 5Nov17 48:48.48. Ps has at least 80 options we’ll cover just a few useful combinations. ps -ef will display all the processes running in the system with larger dataset. ![]() The ps command displays information about your running processes, and optionally the processes of other users. ![]()
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