Read content from text file formed in Windows in Linux bash [duplicate]

Answer 1

The -e echo option is used to output the desired content without inserting a new line, you do not need it here.

Also I suspect your file containing the ids to be malformed, on which OS did you create it?

Anyway, you can simplify your script this way:

!/bin/bash

while read line
do
    wget "http://www.rcsb.org/pdb/files/$line.pdb"
done < id_numbers.txt

I was able to successfully test it with an id_numbers.txt file generated like so:

for i in $(0 9) ; do echo "$i" >> id_numbers.txt ; done