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CVS labels a single project (set of related files) that it manages as a module. A CVS server stores the modules it manages in its repository. Programmers acquire copies of modules by checking out. The checked-out files serve as a working copy, sandbox or workspace. Changes to the working copy are reflected in the repository by committing them.
copy: Mark specified files to be copied at next commit; merge: Apply the differences between two sources to a working copy path; commit: Record changes in the repository; revert: Restore working copy file from repository; generate bundle file: Create a file that contains a compressed set of changes to a given repository
Apache Subversion (often abbreviated SVN, after its command name svn) is a version control system distributed as open source under the Apache License. [1] Software developers use Subversion to maintain current and historical versions of files such as source code , web pages, and documentation.
In Windows Explorer, besides showing context menu items for Subversion commands, TortoiseSVN provides icon overlay that indicates the status of Subversion working copies. It also comes with the TortoiseMerge utility, available from Tigris.org website, to visually compare two files. [4]
Azure DevOps Server, formerly known as Team Foundation Server (TFS) and Visual Studio Team System (VSTS), is a Microsoft product that provides version control (either with Team Foundation Version Control (TFVC) or Git), reporting, requirements management, project management (for both agile software development and waterfall teams), automated builds, testing and release management capabilities.
Mercurial is primarily a command-line driven program, but graphical user interface extensions are available, e.g. TortoiseHg, and several IDEs offer support for version control with Mercurial. All of Mercurial's operations are invoked as arguments to its driver program hg (a reference to Hg – the chemical symbol of the element mercury ).
Copy-on-write (COW), also called implicit sharing [1] or shadowing, [2] is a resource-management technique [3] used in programming to manage shared data efficiently. Instead of copying data right away when multiple programs use it, the same data is shared between programs until one tries to modify it.
Files may be copied to device files (e.g. copy letter.txt lpt1 sends the file to the printer on lpt1. copy letter.txt con would output to stdout, like the type command. Note that copy page1.txt+page2.txt book.txt will concatenate the files and output them as book.txt. Which is just like the cat command). It can also copy files between different ...