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View a file with line numbers

 $ grep -n ^ /path/to/file | less

— by Janos on Nov. 9, 2011, 11:05 p.m.

Explanation

  • grep ^ will match all lines in a file
  • grep -n will prefix each line of output with the line number within its input file

Limitations

In some systems you might have to use egrep instead of grep.