bash: iterating through txt file lines can't read last line

Question

while read p; do
echo $p
done < file.txt

this code can read all lines in the file.txt except the last line any

Answer 1

if youre in doubt about the last \n in the file, you can try:

while read p; do
echo $p
done < <(grep '' file.txt)

grep is not picky about the line endings ;)

you can use grep . file.txt for skipping empty lines...