63 echo % cat a c

    63 echo % cat a c

    64 cat a c

    64 cat a c

    65 echo % touch copied c

    65 echo % touch copied c

    66 touch c

    66 touch c

    67 echo % status

    67 echo % status

    68 

    69 

    69 echo % rollback

    70 echo % rollback

    70 hg rollback

    71 hg rollback

    71 echo % status

    72 echo % status

    72 hg status

    73 hg status