The Symbolic Links (zymlinks) that a kind of zymbolic history management systems (ZHMS) allow user to create annotation arrive file-sharing file system. Single link is created as that each which user of file-sharing file system desires access to. A kind of zymlink can be updated to shared-file system via zupdate orders. Rather than when selectively updating permitted file, the entire tree file of user simply zupdate. When the editing files that come of arrival time, user obtains the file of writable copy using the history management file system command of standard. Zymlink is destroyed using one of these orders and corresponds to file, substitutes the disk of the Duplicate user of privately held files. When edit file is that check is carried on the back to history management file system, reading only replicates the disk that file is maintained at user. When user updates his or her file system, read-only file copy can use new zymlink. User is usually by the current version of view shared file. Without the current version shared file being to look at, user may want to keep the file version of static view by issuing zreset orders. System offer has provided a user system of more free disk spaces than traditional history management.
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