Addgroup Command Not Found – How to Resolve

I figured this out. I just appended the new java path to the beginning of my path variable instead of the end and it worked.

export PATH=/usr/local/testing/jdk1.6.0_23/bin:$PATH

That worked. Now i am going to set in my script so it will do automatically.

You seem to be mistaken in that abc.py would not be a command. If you can execute it, then is, just one with a dot in the name. Execute in the sense that you can do ./abc.py, so the execute bits must be set. If you have to do python abc.py than you it is not a command (yet).

In general, to make a normal python file abc.py executable you should make sure the first line reads:

#!/usr/bin/env python

(This assumes you have /usr/bin/env as a program, and that will find the python command, which might be in /usr/local/bin. It also assumes that you want to run the default python (which is normally a link to a particular python version like python2.7), you could also use python3 if that is available as a command).

After that do

chmod +x abc.py
mv abc.py abc

And then you can run ./abc. If the current directory is in your path, or if you move abc to a directory in your path, you should be able to execute abc from anywhere.¹

There are however disadvantages of renaming and moving the file:

• you can no longer to from abc import SomeClass, as the file is renamed
• If the file is under revision control it might no longer be

So instead, what I normally do, is make a new file /usr/local/bin/abc that looks like:

#!/usr/bin/env python

from abc import main
main()

and have at the bottom of abc.py:

def main():
    doing the real stuff

if __name__ == '__main__':
    main()

The directory of abc.py needs to be in the PATH python searches for modules, but this way it doesn't have to be changed, and can be used by any program as an import, and started as python abc.py.

¹ _{The mv is necessary to get rid of the dot in the command name, but not really necessary, you can invoke ./abc.py if you don't rename it.}