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(cvs.info)Substitution modes

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Substitution modes
==================

   Each file has a stored default substitution mode, and each working
directory copy of a file also has a substitution mode.  The former is
set by the `-k' option to `cvs add' and `cvs admin'; the latter is set
by the `-k' or `-A' options to `cvs checkout' or `cvs update'.  `cvs
diff' also has a `-k' option.  For some examples, see Note: Binary
files, and Note: Merging and keywords.

   The modes available are:

`-kkv'
     Generate keyword strings using the default form, e.g.  `$Revision:
     5.7 $' for the `Revision' keyword.

`-kkvl'
     Like `-kkv', except that a locker's name is always inserted if the
     given revision is currently locked.  The locker's name is only
     relevant if `cvs admin -l' is in use.

`-kk'
     Generate only keyword names in keyword strings; omit their values.
     For example, for the `Revision' keyword, generate the string
     `$Revision$' instead of `$Revision: 5.7 $'.  This option is useful
     to ignore differences due to keyword substitution when comparing
     different revisions of a file (Note: Merging and keywords).

`-ko'
     Generate the old keyword string, present in the working file just
     before it was checked in.  For example, for the `Revision'
     keyword, generate the string `$Revision: 1.1 $' instead of
     `$Revision: 5.7 $' if that is how the string appeared when the
     file was checked in.

`-kb'
     Like `-ko', but also inhibit conversion of line endings between
     the canonical form in which they are stored in the repository
     (linefeed only), and the form appropriate to the operating system
     in use on the client.  For systems, like unix, which use linefeed
     only to terminate lines, this is the same as `-ko'.  For more
     information on binary files, see Note: Binary files.

`-kv'
     Generate only keyword values for keyword strings.  For example,
     for the `Revision' keyword, generate the string `5.7' instead of
     `$Revision: 5.7 $'.  This can help generate files in programming
     languages where it is hard to strip keyword delimiters like
     `$Revision: $' from a string.  However, further keyword
     substitution cannot be performed once the keyword names are
     removed, so this option should be used with care.

     One often would like to use `-kv' with `cvs export'--Note:
     export.  But be aware that doesn't handle an export containing
     binary files correctly.