how to increment all file names in a folder

[Skaperen]

so you need to make a mass rename. yeah that obviously needs a loop. you could write a script to do it. you could do it in Python, but in a shell script might be easier if you know shell scripting. you could do it in Python as a learning exercise. me, personally, i'd do it in a command (in bash) in that directory like:

(ls -1|while read f;do mv $f ${f}1;done)

if you want the "1" to be before the "." it will be a slightly longer command. but maybe it is better for you to do this as a Python script. write something that outputs the commands to do it and when it makes all the right commands then pipe them into a shell.