One of the great things about cat is that you can view the contents of a file with line numbers. You do so using the -n option, as follows:
cat -n ~/Desktop/myFile
Sometimes a file is too big to view though, so you can pipe the output to less, to combine some of the best features of each:
cat -n ~/Desktop/myFile | less
Obviously, the same thing would work with more:
cat -n ~/Desktop/myFile | less
You can also do something similar with the grep command and the -n option:
grep -n ^ ~/Desktop/myFile | less
Enjoy.
