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bash loop bash

Bash Script: Read One Character At A Time

I need to count one character at a time from input.txt. How do I read one character at a time under Linux / UNIX bash shell script?
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Bash For Loop Spaces

How do I use bash for loop with spaces in a file name on Unix or Linux operating system? The following code fails with errors:

#!/bin/bash
files=$(ls *.txt)
dest="/nas/server/dest"
for f in $files
do
cp "$f" $dest
done

How do I fix this problem on bash shell?
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Linux bash for loop

Q. How do I use bash for loop under Linux operating systems?
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