The emerge command-line tool is the stupid heart of the Gentoo Linuxpackage management system known as Portage. The command is fairly complex with many options and modifiers. It is written in the Python programming language. The emerge tool is the most important utility to access the features of Portage from the command line. Image File history File links Gentoo stylized g logo. ... The Gentoo Linux operating system is a Linux distribution named after the Gentoo Penguin. ... This article is about the computing term. ... diff3 is a Unix utility to compare three files and show any differences among them. ... This article is about the text editor. ... Fischerspooner in concert, 2005. ... The Gentoo Linux operating system is a Linux distribution named after the Gentoo Penguin. ... A package management system is a collection of tools to automate the process of installing, upgrading, configuring, and removing software packages from a computer. ... Portage is an advanced package management system. ... Python is an interpreted programming language created by Guido van Rossum in 1990. ... A command line interface or CLI is a method of interacting with a computer by giving it lines of textual commands (that is, a sequence of characters) either from keyboard input or from a script. ...
The program calculates and manages dependencies, executes ebuilds and maintains the local Portage tree and database of installed packages. The compilation settings used by ebuilds can be changed through the CFLAGS environment variable, based on the specifications of the individual computer and on the user's desire for optimization. The emerge utility executes ebuilds in a sandbox environment. This way the system is protected from software executed by the ebuild and resulting binaries are only merged after a successful build and sandboxed install. An Ebuild is a bash script written for the Portage system of Gentoo Linux. ... CFLAGS and CXXFLAGS are either the name of environment variables or of Makefile variables that can be set to specify additional switches to be passed to a compiler in the process of building computer software. ... For the Wikipedia sandbox for editing experiments see Wikipedia:Sandbox This article is about the computer security model. ...
What emerge installs as dependencies is affected by the USE flag-settings. They decide which optional features will be included when installing or upgrading an application. The emerge command can also be used to download and install binary files, although some people argue that using binary packages is not taking full advantage of Portage's power since it foregoes the compile-time optimization options normally available.
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