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2.1.1 Revision options

As to be expected in a revision control system, many options are of the form ‘-flag[rev]’, where flag is a single letter (e.g., ‘r’). If ommitted, rev defaults to the latest revision on the default branch. A revision can be specified in many ways:


Straightforward dot-notation, where br specifies the branch.


Like br.n, using the default branch.


Like br.n, using the a command-specific computation of n, given the current tip i. For ci (see ci), n would be i + 1, while for other commands n would be simply i.


This is the symbolic name of a revision, as assigned previously by a ci -n or ci -N command.


The command computes the effective revision by examining the values of keyword expansions in the working file.

For commands that accept a range of revisions, the syntax is generally rev1:rev2, i.e., two revisions (specified as described above) separated by a colon.