Question

I’am trying to write simple script that will get files name from one folder and search them in another folder and remove if found them in that folder.
Got two folder like

/home/install/lib

/home/install/bin

/home/install/include

and

/usr/local/lib

/usr/local/bin

/usr/local/include

I want to remove all file’s from /usr/local/lib{bin,include} that contains in /home/install/lib{bin,include}. For example having

/home/install/lib/test1

/usr/local/lib/test1

scritp will remove /usr/local/lib/test1. I tried to do it from each separate directory

/home/install/lib:ls -f -exec rm /usr/local/lib/{} \;
but nothing. Can you help me to manage with this simple script?

Answer 1

Create script rmcomm

#!/bin/bash
a="/home/install/$1"
b="/usr/local/$1"
comm -12 <(ls "$a") <(ls "$b") | while read file; do
  rm "$b/$file"
done

Then call this script for every pair:

for dir in lib bin include; do rmcomm "$dir"; done