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To remove zombies from a system, the SIGCHLD signal can be sent to the parent manually, using the kill command. If the parent process still refuses to reap the zombie, and if it would be fine to terminate the parent process, the next step can be to remove the parent process. When a process loses its parent, init becomes its new parent.
pkill - signals processes based on name and other attributes. It was introduced in Solaris 7 and has since been reimplemented for Linux, NetBSD and OpenBSD. pkill makes killing processes based on their name much more convenient: e.g. to kill a process named firefox without pkill (and without pgrep), one would have to type kill `ps --no-headers ...
The kill(2) system call sends a specified signal to a specified process, if permissions allow. Similarly, the kill(1) command allows a user to send signals to processes. The raise(3) library function sends the specified signal to the current process.
Likewise, a similar strategy is used to deal with a zombie process, which is a child process that has terminated but whose exit status is ignored by its parent process. Such a process becomes the child of a special parent process, which retrieves the child's exit status and allows the operating system to complete the termination of the dead ...
kill, which sends signals processes by process ID instead of by pattern-matching against the name. renice, which changes the priority of a process. top and htop, which display a list of processes and their resource usage; htop can send signals to processes directly from this list. skill, a command-line utility to send signals or report process ...
Send the SIGTERM signal to all processes except init (PID 1) e. e: f: Call oom_kill, which kills a process to alleviate an OOM condition f: u: f: t: When using Kernel Mode Setting, switch to the kernel's framebuffer console. [5] If the in-kernel debugger kdb is present, enter the debugger. g: i: g: d: Output a terse help document to the console
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killall is a command line utility available on Unix-like systems. There are two very different implementations. The implementation supplied with genuine UNIX System V (including Solaris) and Linux sysvinit tools kills all processes that the user is able to kill, potentially shutting down the system if run by root.