The cut command in unix lets you specify which part of a line you want to echo. For example if
produces something like:
Cut can also be used to specify particular columns in tab, space or other delimited data.
then you could pipe the file into the cut command to show only the 3rd character like this:
cat file.txt | cut -c 3
You can also specify ranges like this:
cat file.txt | cut -c 3-4,6-8