cat a file line by line doesn’t work
When you wan’t to compute a file line by line in Bash (or other shell’s ?) with eg. with this command:
for L in $(cat lines.txt); do
grep “$L” second-file.txt;
done
or
cat lines.txt | while read L; do
grep “$L” second-file.txt
done
it does ONLY work if you use the UNIX line separator (\n). If you access a file, which was created on a windows system, such commands will not return the expected result. You have to convert the input file first. Do that with the little tool called “dos2unix”.
