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It has since been available in illumos and reimplemented for the Linux and BSDs (DragonFly BSD, FreeBSD, NetBSD, and OpenBSD). It searches for all the named processes that can be specified as extended regular expression patterns, and—by default—returns their process ID. Alternatives include pidof (finds process ID given a program name) and ps.
pstree is a Linux command that shows the running processes as a tree [1] [2] [3]. It is used as a more visual alternative to the ps command. The root of the tree is either init or the process with the given pid. It can also be installed in other Unix systems. In BSD systems, a similar output is created using ps -d, in Linux ps axjf [4] produces ...
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.
On such systems, ps commonly runs with the non-standard options aux, where "a" lists all processes on a terminal, including those of other users, "x" lists all processes without controlling terminals and "u" adds a column for the controlling user for each process. For maximum compatibility, there is no "-" in front of the "aux". "ps auxww ...
lsof is a command meaning "list open files", which is used in many Unix-like systems to report a list of all open files and the processes that opened them. This open source utility was developed and supported by Victor A. Abell, the retired Associate Director of the Purdue University Computing Center.
Paginate or columnate files for printing Version 1 AT&T UNIX printf: Shell programming Mandatory Write formatted output 4.3BSD-Reno prs: SCCS Optional (XSI) Print an SCCS file PWB UNIX ps: Process management Mandatory Report process status Version 4 AT&T UNIX pwd: Filesystem Mandatory Print working directory Version 5 AT&T UNIX read: Shell ...
pidof — Print the PIDs of all processes with the given names. ping — Check network connectivity by sending packets to a host and reporting its response. pivot root — Swap OLD and NEW filesystems (as if by simultaneous mount—move), and move all processes with chdir or chroot under OLD into NEW (including kernel threads) so OLD may be ...
Kill all processes on the current virtual console (can kill X and SVGAlib programs, see below) This was originally designed to imitate a secure attention key: k: t: k: e: Shows a stack backtrace for all active CPUs. l: n: l: i: Output current memory information to the console m: m, m: Reset the nice level of all high-priority and real-time ...