How to list specific type of files in recursive directories in shell?

Question

How can we find specific type of files i.e. doc pdf files present in nested directories.

command I tried:

$ ls -R | grep .doc

but if th

Answer 1

ls command output is mainly intended for reading by humans. For advanced querying for automated processing, you should use more powerful find command:

find /path -type f \( -iname "*.doc" -o -iname "*.pdf" \) 

As if you have bash 4.0++

#!/bin/bash
shopt -s globstar
shopt -s nullglob
for file in **/*.{pdf,doc}
do
  echo "$file"
done