systat is a

BSD UNIX The Berkeley Software Distribution (BSD), also known as Berkeley Unix or BSD Unix, is a discontinued Unix operating system developed and distributed by the Computer Systems Research Group (CSRG) at the University of California, Berkeley, beginni ...

console application A console application or command-line program is a computer program (applications or utilities) designed to be used via a text-only user interface. A console application can be used with a computer terminal, a system console, or a terminal emu ...

for displaying system statistics in fullscreen mode using ncurses/

curses A curse (also called an imprecation, malediction, execration, malison, anathema, or commination) is any expressed wish that some form of adversity or misfortune will befall or attach to one or more persons, a place, or an object. In particular ...

. It is available on, and by default ships in the base systems of,

FreeBSD FreeBSD is a free-software Unix-like operating system descended from the Berkeley Software Distribution (BSD). The first version was released in 1993 developed from 386BSD, one of the first fully functional and free Unix clones on affordable ...

NetBSD NetBSD is a free and open-source Unix-like operating system based on the Berkeley Software Distribution (BSD). It was the first open-source BSD descendant officially released after 386BSD was fork (software development), forked. It continues to ...

OpenBSD OpenBSD is a security-focused operating system, security-focused, free software, Unix-like operating system based on the Berkeley Software Distribution (BSD). Theo de Raadt created OpenBSD in 1995 by fork (software development), forking NetBSD ...

and

DragonFly BSD DragonFly BSD is a free and open-source Unix-like operating system forked from FreeBSD 4.8. Matthew Dillon, an Amiga developer in the late 1980s and early 1990s and FreeBSD developer between 1994 and 2003, began working on DragonFly BSD in ...

. It was first released as part of

4.3BSD The history of the Berkeley Software Distribution began in the 1970s when University of California, Berkeley received a copy of Unix. Professors and students at the university began adding software to the operating system and released it as BSD to ...

in . Both internally and in the interface of the user the utility consists of several distinct modules and

tabs Tab, TAB, tabs, or TABS may refer to: Places * Tab, Hungary, a town * Tab District, Hungary, whose seat is Tab * Tab, Indiana, United States, an unincorporated community * Arthur Napoleon Raymond Robinson International Airport, Tobago, IATA cod ...

, referred to as "displays" in FreeBSD, NetBSD and DragonFly, and "views" in OpenBSD, which are automatically refreshed every specified number of seconds. These modules cover all system components, including statistics resembling

vmstat vmstat (''virtual memory statistics'') is a computer system monitoring tool that collects and displays summary information about operating system memory, processes, interrupts, paging and block I/O. Users of vmstat can specify a sampling inter ...

iostat iostat (''input/output statistics'') is a computer system monitor tool used to collect and show operating system computer data storage, storage input and output statistics. It is often used to identify performance issues with storage devices, incl ...

and

netstat In computing, netstat is a command-line network utility that displays open network sockets, routing tables, and a number of network interface (network interface controller or software-defined network interface) and network protocol statistic ...

in all of the BSDs, as well as pf and

sensors A sensor is often defined as a device that receives and responds to a signal or stimulus. The stimulus is the quantity, property, or condition that is sensed and converted into electrical signal. In the broadest definition, a sensor is a devi ...

views in some of the BSDs. The systat utility is notably absent from

OS X macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. With ...

, where a GUI-based

Activity Monitor This is a list of built-in apps and system components developed by Apple Inc. for macOS that come bundled by default or are installed through a system update. Many of the default programs found on macOS have counterparts on Apple's other operat ...

performs similar functions.

References

External links

* 1986 software BSD software Computer performance DragonFly BSD Environmental monitoring Free software programmed in C Free system software FreeBSD Motherboard NetBSD OpenBSD System administration System monitors Unix file system-related software Unix network-related software Utility software {{unix-stub

See also

References

External links