Thanks very much! I was thrown by `git blame` having an almost-identical but opposite interface (must use a space and not a colon). Thanks, Daniel Heath On Fri, Dec 4, 2020, at 1:54 PM, Eric Sunshine wrote: > On Thu, Dec 3, 2020 at 9:50 PM Daniel <daniel@xxxxxxxx> wrote: > > $ git log -L ^/bootstrap-sass/,+2 Gemfile > > fatal: -L argument not 'start,end:file' or ':funcname:file': > > ^/bootstrap-sass/,+2 > > > > $ git help log > > -L <start>,<end>:<file>, -L :<funcname>:<file> > > You're missing the colon between <end> and <file> in your example. It should be: > > $ git log -L ^/bootstrap-sass/,+2:Gemfile >