'nl' - number lines of files - Video Man Pages

The 'nl' command adds line numbers to files or to terminal output. + Number non-blank lines in a file: nl path/to/file + Number non-blank lines in ouptut from stdin: command | nl ex: seq 10 | nl + Number [a]ll [b]ody lines including blank lines or do [n]ot number body lines: nl -b a path/to/file + Do [n]ot number [b]ody lines (essentially this suppresses the line numbers): nl -b n path/to/file NOTE The above command is not that different than 'cat' or 'less' except that 'nl -b n