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12. Keyword substitution

As long as you edit source files inside a working directory you can always find out the state of your files via `cvs status' and `cvs log'. But as soon as you export the files from your development environment it becomes harder to identify which revisions they are.

CVS can use a mechanism known as keyword substitution (or keyword expansion) to help identifying the files. Embedded strings of the form $keyword$ and $keyword:...$ in a file are replaced with strings of the form $keyword:value$ whenever you obtain a new revision of the file.

12.1 Keyword List  Keywords
12.2 Using keywords  
12.3 Avoiding substitution  
12.4 Substitution modes  
12.5 Problems with the $Log$ keyword.  

This document was generated by Charlie & on October, 19 2001 using texi2html