Bash tool to get nth line from a file

Question

Is there a \"canonical\" way of doing that? I\'ve been using head -n | tail -1 which does the trick, but I\'ve been wondering if there\'s a Bash tool that speci

Answer 1

To print nth line using sed with a variable as line number:

a=4
sed -e $a'q:d' file

Here the '-e' flag is for adding script to command to be executed.