linux: find files from a list in txt, the files contain spaces

Question

I need to find files from a list in txt (i already have the txt with all the files, are separated with lines), the files contain spaces and the extension of the files are pdf, if you can suggest how to make an output of the command or script to another txt file.

What I try (this one retrieve all the files in the directory and contain spaces, but only the existing ones, i need to find the non existing too):

find . -type f -name *.pdf

Thank's in advance for any help.

Solution 1

#!/bin/bash
while read -r FILE
do
  FOUND="$(find . -name "$FILE" -print -quit)"
  if [ "x$FOUND" != "x" ]
  then
    echo "FOUND: $FILE"
  else
    echo "NOT FOUND: $FILE"
  fi
done <filelist.txt

Solution 2

This is harder than it seems

while read -r file
do
    find . -name "$file"
done <txt

will find the files that exist and print the full path for them. Unfortunately find sets $? to 0 (SUCCESS) even if the file is not found.

Comments

[Florin Asăvoaie]

You need to find non existing files?

[Vamsi M]

Hi Florin, i need to find existing and non existing files, thanks for your comment.

[Florin Asăvoaie]

How can you find a file that does not exist?

[Vamsi M]

I want the log of the command or script to say that the file doesn't exist

[Vamsi M]

Its correct I have the list of files and some of those are not yet present, i need to report which of those are there, and which not.

[Vamsi M]

I will give a try to what you post, thanks for your help.

[Nicolaie]

A bit of explanation regarding my answer: ALIST and BLISt are arrays. And comm -3 shows differences of the two contained in the second expression.