1 #!/bin/sh

     2 

     3 mkdir a

     4 cd a

     5 hg init

     6 echo 123 > a

     7 hg add a

     8 hg commit -m "a" -u a

     9 

    10 cd ..

    11 mkdir b

    12 cd b

    13 hg init

    14 echo 321 > b

    15 hg add b

    16 hg commit -m "b" -u b

    17 

    18 hg pull ../a

    19 hg pull -f ../a

    20 hg heads