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First appearing in Version 7 Unix, [3] sed is one of the early Unix commands built for command line processing of data files. It evolved as the natural successor to the popular grep command. [ 4 ] The original motivation was an analogue of grep (g/re/p) for substitution, hence "g/re/s". [ 3 ]
This is a list of commands 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 Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.
This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.
ed is the standard Unix text editor. This is line number three. Started with an empty file, the a command appends text (all ed commands are single letters). The command puts ed in insert mode, inserting the characters that follow and is terminated by a single dot on a line. The two lines that are entered before the dot end up in the file buffer.
DEC SED (text editor), for some DEC operating systems; sed, "stream editor", a simple command-line text editor in unix-like system; Self-encrypting device, an encrypting hard drive; Spectral energy distribution, of an astronomical source; Stochastic electrodynamics, in quantum mechanics
For instance, the command line utility grep has a regular expression syntax which matches patterns in lines of text. The sed utility defines a syntax for matching and replacing regular expressions. Often, these tiny languages can be used together inside a shell to perform more complex programming tasks.
US Agency for International Development staff around the world will be placed on administrative leave Friday and ordered to return to the US, according to a directive issued Tuesday night.
The man page for the sed utility, as seen in various Linux distributions. A man page (short for manual page) is a form of software documentation found on Unix and Unix-like operating systems. Topics covered include programs, system libraries, system calls, and sometimes local system details. The local host administrators can create and install ...