Report back on whether the process has been successfully killed. Only kill processes owned by a specific user. Ask for additional confirmation when killing the process. Ignore case when trying to find the process name. Find an exact match for the process name. Several options can be used with the killall command: The killall command can kill multiple processes with a single command. By default, it will send a SIGTERM signal. The killall command is used to kill processes by name. There are a few different methods of killing a process in Linux, depending on whether you know the name of the process running, the pid of the process, or just how long the process has been running. Step 3: Use Kill Command Options to Terminate a Process Also returns PIDs of shells that are running scripts. Omit certain PIDs (include the processes to omit after the flag). Only return PIDs within a single root directory. The pidof command is used to find the ID of a process, provided that you know the name of the process. The command pgrep -u root 'a*' returns processes owned by root that start with the letter “a”. The command pgrep -u root displays all processes owned by root. Only find processes that exactly match the given pattern. Only find processes that belong to a specific user. List both the process names and the PIDs. Here are the options that can be used with this command: The pattern is a regular expression, such as a*, where * would be a wildcard. This command will return processes based on specific selection criteria, which is known as the pattern. The Linux command pgrep is a more complex way of finding a process. The top command will reveal process IDs and users, in addition to the amount of memory and CPU power each process is using. To view a list of all currently running processes, use the command: top The top command is the easiest way to get a complete overview of the processes currently being run. It can be considered a gentler way of attempting to terminate a process.įor most purposes, SIGKILL will be the fastest and most effective method to terminate the process. SIGTERM – SIGTERM attempts to kill a process, but unlike SIGKILL it may be blocked or otherwise handled.If it does not work, the operating system has failed.
It will always kill a process and will kill the process abruptly, generating a fatal error.
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