2 # missing arg

     3 hg cat: invalid arguments

     4 hg cat [OPTION]... FILE...

     5 

     6 output the current or given revision of files

     7 

     8     Print the specified files as they were at the given revision.

     9     If no revision is given, the parent of the working directory is used,

    10     or tip if no revision is checked out.

    11 

    12     Output may be to a file, in which case the name of the file is

    13     given using a format string.  The formatting rules are the same as

    14     for the export command, with the following additions:

    15 

    16     %s   basename of file being printed

    17     %d   dirname of file being printed, or '.' if in repo root

    18     %p   root-relative path name of file being printed

    19 

    20 options:

    21 

    22  -o --output   print output to file with formatted name

    23  -r --rev      print the given revision

    24  -I --include  include names matching the given patterns

    25  -X --exclude  exclude names matching the given patterns

    26 

    27 use "hg -v help cat" to show global options