However, if you have to use it in a script, it could be an issue. That's not an issue if you are manually reading it. If you know the PID, you can simply use the grep command to filter the output and get the details on that PID: ps aux | grep PIDīut as illustrated by the image below, the output gives other details along with the process name. You can list all running process using the ps command or top command and note the process ID and process name as desired. And if that's the case, you may either look into the man page of ps command or use other ways of getting the details. Honestly, it's difficult to remember the weird ps -p PID -o comm= syntax. In the above command, -p PID provides the process ID and -o comm= asks it to output the command associated with the given PID. The ps command is used for process related operations. All of the specific invocations listed above will work on both Linux and MacOS.If you know the process ID (PID), you can get the process name using the ps command: ps -p PID -o comm= Favoring pkill (instead of killall) and pgrep (instead of ps) can help reduce these issues. Some of these commands and their flags may behave slightly differently on different operating systems. 15 - SIGTERM (default) - Request that the program terminate (can be ignored or handled)Ĭommand Portability.9 - SIGKILL - Forcibly terminate the program immediately (cannot be ignored or handled).2 - SIGINT - Interrupt the program (equivalent to pressing Ctrl+C on the terminal).The process can choose to ignore or handle this signal rather than ending, either purposefully or because the process is misbehaving. Process Signalsīy default, running kill or pkill sends the SIGTERM signal to the specified process, which is the polite way to ask the process to terminate. Warp users will notice that the terminal block is helpfully made red to indicate that the process failed. If these commands don't find any matching processes, they will often silently exit with no notice that it didn't work other than a nonzero return code. If you still want to use killall, you might have difficulty targeting the right process, but you can try the following: Some versions of Linux may not even provide killall. They're now generally discouraged because they behave very differently and are somewhat hard to use. ![]() Killall and ps are the old-fashioned equivalents of pkill and pgrep. Pkill -9 -aif firefox pkill and pgrep vs. To do this, simply add the -9 argument to kill or pkill: ![]() If the process doesn't end, you can force kill the process by sending it the SIGKILL signal. ![]() A file it has open: lsof /dev/nullįorce Killing Processes.A network port it's using: lsof -i tcp:8888.The user that executed it: pgrep -u root.The command name that was executed to spawn it: pgrep -aifl firefox.There are a number of ways you can discover the IDs of running processes depending on what you know about the process. If you want to be more precise, the kill command can be used to quit a particular process by specifying its process ID: The pkill command can be used to stop / kill all processes that match its pattern from the command line:
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