Hello All,
I'll try to get it right this time lol

I am trying to do some validation on my script which renames files.
The ones i am struggling with are:


e.g.

1. myscript myfile myfile2 (so my script changes myfile to myfile2 if myfile exists)
output : myfile does not exist

2. myscript myfile myfile2 blurb
cannot have anything after rename

3. myscript myfile
must have name to rename2

Hope that makes sense. I'll put a bit of my code in to try to make it clearer

case $# in
0) echo "nothing has been entered"
exit
;;
1) echo "file none existent"
exit
;;
2) echo "dosRename: $file: Can't have anything after target"
exit
;;
3) echo "no new name"
exit
;;
*)