Named parameters are enclosed in percentage signs, as in %name% while input parameters are numeric and use only one percentage sign, as in %1.

In command prompt there is no direct support for timed wait command. However, there is Choice command that has a time parameter that indicates how long it should wait for selection. This can be used for timing.

In Windows 7 this can be done in the following way (in this example we wait for 5 seconds):

%CD%

Use PUSHD/POPD to switch directories.

Example of conditional branching:

See attached script.