When using Nano text editor, how can I display line numbers so I can see the lines that I am getting error messages about. I have a lengthy program and am getting an error message for line 95 and 125 for example.
2 Answers
Ctrl+C will show the current line/column once, and Meta+C (usually Alt+C) will toggle a continuous line/column display on and off.
Ctrl+_ (that's underscore, so on most keyboard layouts that's Ctrl+Shift+-) will prompt you to jump to a specific line number.
Non permanent
nano -c /path/to/file
Permanent
edit ~/.nanorc
and add the following
set const
For more details - as mentioned by Nick - check this perfect answer.