View a File with Line Numbers
Contributed by qmchenry 
Tagged: UNIX Using the cat command in UNIX, a file can be displayed with the line number of each line preceding the line.
Here is an example of displaying the file filename with line numbers:
cat -n filename
You may also like -
Show line numbers in vi or vim
Determine current file position in vi or vim
Convert DOS and Windows line breaks to Unix line breaks
XP: Create a file of arbitrary size with fsutil
appending a list of files to one file using xargs command
Convert Unix lines breaks to Macintosh line breaks
Unix/Linux: How to use grep commands
Find help with man pages