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The command to create a local repo, git init, creates a branch named master. [61] [111] Often it is used as the integration branch for merging changes into. [112] Since the default upstream remote is named origin, [113] the default remote branch is origin/master. Some tools such as GitHub and GitLab create a default branch named main instead.
pull: Download revisions from a remote repository to a local repository; push: Upload revisions from a local repository to a remote repository; Local branches: Create a local branch that does not exist in the original remote repository; checkout: Create a local working copy from a (remote) repository
A branch hierarchy is often useful: an entire development project can share a common development branch, while a smaller team can share a sub-branch, with each developer having his or her own private branch. Whenever a change on a branch is deemed stable enough, it can be merged to the parent branch.
The magic SysRq key is a key combination understood by the Linux kernel, which allows the user to perform various low-level commands regardless of the system's state. It is often used to recover from freezes , or to reboot a computer without corrupting the filesystem . [ 1 ]
Astronauts manually flew Project Gemini with control sticks, but computers flew most of Project Apollo except briefly during lunar landings. [6] Each Moon flight carried two AGCs, one each in the command module and the Apollo Lunar Module, with the exception of Apollo 7 which was an Earth orbit mission and Apollo 8 which did not need a lunar module for its lunar orbit mission.
Clients can also use the "update" command to bring their local copies up-to-date with the newest version on the server. Clients can also compare versions, request a complete history of changes, or check out a historical snapshot of the project (e.g.: based on a given date).
Agent.btz, a variant of the SillyFDC worm, [4] has the ability "to scan computers for data, open backdoors, and send through those backdoors to a remote command and control server." [ 5 ] It was originally suspected that Chinese or Russian hackers were behind it as they had used the same code that made up agent.btz before in previous attacks.
A delta can be defined in 2 ways, symmetric delta and directed delta.A symmetric delta can be expressed as (,) = (),where and represent two versions.. A directed delta, also called a change, is a sequence of (elementary) change operations which, when applied to one version , yields another version (note the correspondence to transaction logs in databases).