1. Git
A
version
control system allows you to track the history of
a
collection
of
files
and includes the functionality
to
revert
the
collection
of files
to
another
version. Each version
captures a snapshot of the files at a
certain point in time.
The
collection of
files
is
usually
source code
for a programming language
but a typical version control system can
put
any type of file under version
control.
The collection of files and their complete history are stored in a
repository.
The process of creating different versions (snapshots) in the
repository is
depicted in the following
graphic. Please note that this
picture fits primarily to Git, other version control systems like
CVS don't create snapshots but store file deltas.
These snapshots can be used to change your collection of files.
You may, for example,
revert the collection of files to a
state
from 2
days ago. Or you may
switch
between versions for
experimental
features.
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