$ echo "[extensions]" >> $HGRCPATH

  $ echo "bookmarks=" >> $HGRCPATH

  $ echo "[bookmarks]" >> $HGRCPATH

  $ echo "track.current = True" >> $HGRCPATH

initialize

  $ hg init a

  $ cd a

  $ echo 'test' > test

  $ hg commit -Am'test'

  adding test

set bookmarks

  $ hg bookmark X

  $ hg bookmark Y

  $ hg bookmark Z

import bookmark by name

  $ hg init ../b

  $ cd ../b

  $ hg pull ../a

  pulling from ../a

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files

  (run 'hg update' to get a working copy)

  $ hg bookmarks

  no bookmarks set

  $ hg pull -B X ../a

  pulling from ../a

  searching for changes

  no changes found

  importing bookmark X

  $ hg bookmark

     X                         0:4e3505fd9583

export bookmark by name

  $ hg bookmark W

  $ hg bookmark foo

  $ hg bookmark foobar

  $ hg push -B W ../a

  pushing to ../a

  searching for changes

  no changes found

  exporting bookmark W

  $ hg -R ../a bookmarks

     Y                         0:4e3505fd9583

     X                         0:4e3505fd9583

   * Z                         0:4e3505fd9583

     W                         -1:000000000000

push/pull name that doesn't exist

  $ hg push -B badname ../a

  bookmark badname does not exist on the local or remote repository!

  $ hg pull -B anotherbadname ../a

  abort: remote bookmark anotherbadname not found!

  $ true