Next: , Previous: Conventions Used In This Tour, Up: A Day With CVS

Invoking CVS

CVS is one program, but it can perform many different actions: updating, committing, branching, diffing, and so on. When you invoke CVS, you must specify which action you want to perform. Thus, the format of a CVS invocation is:

     floss$ cvs command

For example, you can use

     floss$ cvs update
     floss$ cvs diff
     floss$ cvs commit

and so on. (Don't bother to try running any of those particular commands yet, though; they won't do anything until you're in a working copy, which we'll get to shortly.)

Both CVS and the command can take options. Options that affect the behavior of CVS, independently of the command being run, are called global options; command-specific options are just called command options. Global options always go to the left of the command; command options, to its right. So in

     floss$ cvs -Q update -p

-Q is a global option, and -p is a command option. (If you're curious, -Q means "quietly"-that is, suppress all diagnostic output, and print error messages only if the command absolutely cannot be completed for some reason; -p means to send the results of update to standard output instead of to files.)

Karl Fogel wrote this book. Buy a printed copy via his homepage at

copyright  ©  September 17 2019 sean dreilinger url: