1 + hg init

     2 + echo '[hooks]'

     3 + echo 'precommit = echo precommit hook'

     4 + echo 'commit = echo commit hook: $NODE'

     5 + echo a

     6 + hg add a

     7 + hg commit -t test -u test -d '0 0'

     8 precommit hook

     9 commit hook: acb14030fe0a21b60322c440ad2d20cf7685a376