11/11/2023 0 Comments Ps ef unix command![]() ![]() ![]() The options described here will cater for most commonplace needs. If you need to go deeper into ps than we've taken it in this article, you'll find that our introduction makes the man page easier to digest. Ps is flexible enough to give you precisely the information you need in exactly the format you'd like it. In fact, ps has a great many options. The ps command lists all the currently running processes along with some additional information like PID (Process Identity), TTY, user ID, command name, how. Some typical uses are to look at all processes for a user (e.g. It gives you a snapshot of what is happening inside your computer "right now." Of course the most used utility by anyone is the ps command. You can do this to get the fields you want, and eliminate the header. You can also specify the output of the ps command itself using the -o or -O option. ![]() pgrep will eliminate the grep issue where one of the processes you discover is the grep doing your filtering. When -f is set, the full command line is used. 3 Answers Sorted by: 1 Use pgrep to get your PIDs instead of using ps. 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. The ps command satisfies both of these needs. 6 Answers Sorted by: 287 You can use pgrep as long as you include the -f options. Perhaps you're just curious about which processes are running inside your computer, and you'd like to peek beneath the hood. Of course, is to identify the process in question.īut maybe you don't have any task or performance issues at all. Alternatively, this should also work: kill (pgrep -f 'python3 bot.py') Hope this helps. Sometimes tasks need to be killed as a mercy to everyone involved. 1 Try this: ps ax grep 'python3 bot.py' cut -f2 -d' ' - xargs kill The first two pipes get process information, then we try to get the PID column, and finally, we kill the resulting PID. Or they may continue running, but gobble up too much CPU time or RAM, or behave in some equally anti-social way. This version of ps accepts several kinds of options: 1. Sometimes tasks can lock-up, or enter a tight loop, or become unresponsive for other reasons. If you want a repetitive update of the selection and the displayed information, use top(1) instead. ![]()
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