This is a practical hack to speed up your coding-debugging cycles:
Most programming languages tell you that some error occurred in some file on line 666 like so:
Blah, blah. Some error in /some/file.foo:666. Blah.
Viline is a simple bash function that lets you copy and paste the
file:linenumber combo from error messages as an argument to vi.
Vi will then start with the cursor at the offending line. Handy, eh? :-)
To use viline, add the following to your .bashrc:
1 2 3 4
The alias for vi itself is optional, myself, I never give vi any arguments but filenames, so this is pretty safe for me.
Otherwise just type viline instead of vi when you want to edit a file with a
file:line style argument.