generic blog of schmidi2

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”.