CVS命令（concurrent version system）

Usage: cvs [cvs-options] command [command-options-and-arguments]
where cvs-options are -q, -n, etc.
(specify --help-options for a list of options)
where command is add, admin, etc.
(specify --help-commands for a list of commands
or --help-synonyms for a list of command synonyms)
where command-options-and-arguments depend on the specific command
(specify -H followed by a command name for command-specific help)
Specify --help to receive this message

The Concurrent Versions System (CVS) is a tool for version control.
For CVS updates and additional information, see
the CVS home page at http://www.cvshome.org/ or
Pascal Molli's CVS site at http://www.loria.fr/~molli/cvs-index.html

CVS global options (specified before the command name) are:
-H Displays usage information for command.
-Q Cause CVS to be really quiet.
-q Cause CVS to be somewhat quiet.
-r Make checked-out files read-only.
-w Make checked-out files read-write (default).
-l Turn history logging off.
-n Do not execute anything that will change the disk.
-t Show trace of program execution -- try with -n.
-v CVS version and copyright.
-T tmpdir Use 'tmpdir' for temporary files.
-e editor Use 'editor' for editing log information.
-d CVS_root Overrides $CVSROOT as the root of the CVS tree.
-f Do not use the ~/.cvsrc file.
-z # Use compression level '#' for net traffic.
-x Encrypt all net traffic.
-a Authenticate all net traffic.
-s VAR=VAL Set CVS user variable.
(Specify the --help option for a list of other help options)

CVS commands are:
add Add a new file/directory to the repository
admin Administration front end for rcs
annotate Show last revision where each line was modified
checkout Checkout sources for editing
commit Check files into the repository
diff Show differences between revisions
edit Get ready to edit a watched file
editors See who is editing a watched file
export Export sources from CVS, similar to checkout
history Show repository access history
import Import sources into CVS, using vendor branches
init Create a CVS repository if it doesn't exist
kserver Kerberos server mode
log Print out history information for files
login Prompt for password for authenticating server
logout Removes entry in .cvspass for remote repository
pserver Password server mode
rannotate Show last revision where each line of module was modified
rdiff Create 'patch' format diffs between releases
release Indicate that a Module is no longer in use
remove Remove an entry from the repository
rlog Print out history information for a module
rtag Add a symbolic tag to a module
server Server mode
status Display status information on checked out files
tag Add a symbolic tag to checked out version of files
unedit Undo an edit command
update Bring work tree in sync with repository
version Show current CVS version(s)
watch Set watches
watchers See who is watching a file
(Specify the --help option for a list of other help options)