[Fab-user] using run on a machine that doesn't have /bin/bash

[Don Jackson]

Doesn't seem to work.

$ cat fabfile
set(
  fab_hosts = ['svn01'],
)

def pwd():
    "prints cwd"
    run("pwd")

$ fab pwd
   Fabric v. 0.0.9, Copyright (C) 2008 Christian Vest Hansen.
   Fabric comes with ABSOLUTELY NO WARRANTY; for details type `fab  
warranty'.
   This is free software, and you are welcome to redistribute it
   under certain conditions; type `fab license' for details.

Running pwd...
Logging into the following hosts as dcj:
    svn01
[svn01] run: pwd
[svn01] err: ksh: /bin/bash: not found
Error: The run operation failed on svn01.

Is there a variable I can set that will make fabric use another shell?