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  • What does %L do? This script doesn't seem to work, and I am trying to debug it... Commented May 24, 2017 at 16:18
  • I actually don't remember the meaning of %L, it was three years ago. From man diff (current version) %L means "contents of line". Commented May 24, 2017 at 18:56
  • %L prints the contents of the "new" line. IOW, don't print anything for unchanged-lines or old-lines, but print the contents of the line for new-lines. Commented Sep 26, 2017 at 11:44
  • This script works for me, out of the box! Commented Sep 26, 2017 at 17:56