sum is a legacy utility available on some Unix and Unix-like operating systems. This utility outputs a 16-bit checksum of each argument file, as well...

one-point union of topological spaces Whitney sum, of fiber bundles Zero-sum problem in combinatorics Sum (Unix), a program for generating checksums StartUp-Manager...

du (abbreviated from disk usage) is a standard Unix program used to estimate file space usage—space used under a particular directory or files on a file...

Fletcher's checksum Frame check sequence cksum md5sum sha1sum Parchive Sum (Unix) SYSV checksum BSD checksum xxHash Error correction Hamming code Reed–Solomon...

Research Unix refers to the early versions of the Unix operating system for DEC PDP-7, PDP-11, VAX and Interdata 7/32 and 8/32 computers, developed in...

legacy checksum algorithm. It has been implemented in UNIX System V and is also available through the sum command line utility. This algorithm is useless on...

set of permissions. OpenVMS uses a permission scheme similar to that of Unix. There are four categories (system, owner, group, and world) and four types...

and treat it as good if either the signed or unsigned sum matches the included checksum. Unix filesystems support multiple links (names) for the same...

is called a "diff", or a patch, since the output can be applied with the Unix program patch. The output of similar file comparison utilities is also called...

database of quotations. Early versions of the program appeared in Version 7 Unix in 1979. The most common version on modern systems is the BSD fortune, originally...

of processes) is a task manager or system monitor program, found in many Unix-like operating systems, that displays information about CPU and memory utilization...

reputation of being unnecessarily obscure, hence the epithet "pointless style". Unix scripting uses the paradigm with pipes. Tacit programming can be illustrated...

cksum is a command in Unix and Unix-like operating systems that generates a checksum value for a file or stream of data. The cksum command reads each...

UnxUtils is a collection of ports of common GNU Unix-like utilities to native Win32, with executables only depending on the Microsoft C-runtime msvcrt...

checksum (Unix) 16 bits sum with circular rotation SYSV checksum (Unix) 16 bits sum with circular rotation sum8 8 bits sum Internet Checksum 16 bits sum (ones'...

by Lorinda Cherry and Robert Morris at Bell Labs. It is one of the oldest Unix utilities, preceding even the invention of the C programming language. Like...

attempted to compete directly with Microsoft by acquiring Digital Research, Unix System Laboratories, WordPerfect, and the Quattro Pro division of Borland...

Retrieved 8 September 2010. My original impetus for writing PING for 4.2a BSD UNIX came from an offhand remark in July 1983 by Dr. Dave Mills ... I named it...

Adrian Mariano as an implementation of the units utility included with the Unix operating system. It was originally available under a permissive license...

from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core...

Part of the troff suite of Unix document layout tools, eqn is a preprocessor that formats equations for printing. A similar program, neqn, accepted the...

The Unix command top provides CPU time, priority, elapsed real time, and other information for all processes and updates it in real time. The Unix command...

effect extending the precision of the sum by the precision of the compensation variable. In particular, simply summing n {\displaystyle n} numbers in sequence...

available in many modern operating systems, generally named traceroute in Unix-like systems such as FreeBSD, macOS, and Linux and named tracert in Windows...

In Unix and Unix-like operating systems, chmod is the command and system call used to change the access permissions and the special mode flags (the setuid...

2147483648 The number of non-negative values for a signed 32-bit integer. Since Unix time is measured in seconds since January 1, 1970, it will run out at 2147483647...

Like sed and grep, it is a filter, and it is a standard feature of most Unix-like operating systems. The AWK language is a data-driven scripting language...

BusyBox is a software suite that provides several Unix utilities in a single executable file. It runs in a variety of POSIX environments such as Linux...

traditionally been adept at expressing one-liners. Shell interpreters such as Unix shells or Windows PowerShell allow for the construction of powerful one-liners...

selling three Unix operating system variants for Intel x86 processors: Xenix, SCO UNIX (later known as SCO OpenDesktop and SCO OpenServer), and UnixWare. SCO...