Rename files in multiple directories to the name of the directory

Question

I have something like this:

v_1/file.txt
v_2/file.txt
v_3/file.txt
...

and I want to rename those files to something like this:

<         


        

Answer 1

Seem pretty straightforward to me:

$ mkdir /tmp/sandbox
$ cd /tmp/sandbox

$ mkdir v_{1,2,3}
$ touch v_{1,2,3}/file.txt

$ rename -v 's#/file##' v_{1,2,3}/file.txt
rename v_1/file.txt v_1.txt
rename v_2/file.txt v_2.txt
rename v_3/file.txt v_3.txt

$ ls -F
v_1/  v_1.txt    v_2/  v_2.txt    v_3/  v_3.txt