Trying to get casperjs running on Ubuntu 12.04. After installing it when I run I get:

09:20 $ ll /usr/local/bin/casperjs

lrwxrwxrwx 1 root root 26 Nov  6 16:49 /usr/local/bin/casperjs -> /opt/casperjs/bin/casperjs



09:20 $ /usr/bin/env python --version

Python 2.7.3



09:20 $ cat /opt/casperjs/bin/casperjs | head -4 

#!/usr/bin/env python



import os

import sys



09:20 $ casperjs

: No such file or directory



09: 22 $ python

Python 2.7.3 (default, Sep 26 2013, 20:03:06) 

[GCC 4.6.3] on linux2

So Python is present and runnable, casperjs is pointing to the right place and it is a python script. But when I run it I get "No such file".

I can fix it by changing the first line of the casperjs python file from:

#!/usr/bin/env python

to:

#!/usr/bin/python

Result:

$ casperjs --version

1.1.0-DEV

I managed to fix it, but I'm wondering why it didn't work with #!/usr/bin/env python, since that seems to be a normal interpreter line. Do I have something configured wrong?

Here are the steps to get casperjs:

$ git clone git://github.com/n1k0/casperjs.git

$ cd casperjs

$ ln -sf `pwd`/bin/casperjs /usr/local/bin/casperjs

$ casperjs

: No such file or directory