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Unix - Frequently Asked Questions (7/7) [Frequent posting]
Section - RCS vs SCCS: What are the keywords?

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>From: Bill Wohler <wohler@newt.com>

7.4)  RCS vs SCCS:  What are the keywords?

      RCS and SCCS use different keywords that are expanded in the
      text.  For SCCS the keyword "%I%" is replaced with the revision
      number if the file is checked out for reading.

      The RCS keywords are easier to remember, but keyword expansion is
      more easily customized in SCCS.

      In SCCS, keywords are expanded on a read-only get.  If a version
      with expanded keywords is copied into a file that will be
      deltaed, the keywords will be lost and the version information in
      the file will not be updated.  On the other hand, RCS retains the
      keywords when they are expanded so this is avoided.

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Top Document: Unix - Frequently Asked Questions (7/7) [Frequent posting]
Previous Document: RCS vs SCCS: What's in a Revision File?
Next Document: What's an RCS symbolic name?

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Last Update March 27 2014 @ 02:12 PM