I learnt this via intermediaries from, I believe, originally Bob Davenport:

These are the lyrics that I used to sing;

If you want to find the Colonel
I know where he is!
I know where he is!
I know where he is!
If you want to find the Colonel
I know where he is!
He's pinning another medal on his chest (big chest)!
I saw him!
I saw him!
Pinning another medal on his chest!
I saw him!
Pinning another medal on his chest!

Captain
In Paree (Paris) on seven day's leave!

Quartermaster
Drinkin' all the company's rum!

Sergeant
Drunk upon the dugout floor!

Coporal
Up to his neck in clods!

Private
Hanging on the old barbed wire!

Brilliantly sarcastic and subversive song which is guaranteed to get any half-decent singing crowd belting it out in full voice!