patch 8.0.0504: looking up an Ex command is a bit slow commit https://github.com/vim/vim/commit/e5e0fbcd4244d032a0635ad7defe2831f251c639 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 25 14:51:01 2017 +0100 patch 8.0.0504: looking up an Ex command is a bit slow Problem: Looking up an Ex command is a bit slow. Solution: Instead of just using the first letter, also use the second letter to skip ahead in the list of commands. Generate the table with a Perl script. (Dominique Pelle, closes #1589)

#! /bin/sh
#
# which.sh -- find where an executable is located.  It's here because the
# "which" command is not supported everywhere.  Used by Makefile.

IFS=":"
for ac_dir in $PATH; do
	if test -f "$ac_dir/$1"; then
		echo "$ac_dir/$1"
		break
	fi
done