1358   $ cd b

  1358   $ cd b

  1359   $ hg up

  1359   $ hg up

  1360   0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  1360   0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  1361   $ hg branch foobar

  1361   $ hg branch foobar

  1362   marked working directory as branch foobar

  1362   marked working directory as branch foobar

  1363   $ hg commit -m 'create foobar'

  1364   $ hg commit -m 'create foobar'

  1364   $ echo 'foo contents' > abc.txt

  1365   $ echo 'foo contents' > abc.txt

  1365   $ hg add abc.txt

  1366   $ hg add abc.txt

  1366   $ hg commit -m 'foobar contents'

  1367   $ hg commit -m 'foobar contents'

  1367   $ cd ..

  1368   $ cd ..