Command explanations sed '/shUntil\|link shRepeat/{...: This sed command fixes a bug in the syntax/sh.vim file that will cause an error message when you edit a shell script using syntax highlighting. make CPPFLAGS=-DSYS_VIMRC_FILE=\\\"/etc/vimrc\\\": Setting this will cause vim to look for the /etc/vimrc file that contains the global vim settings. Normally this file is looked for in /usr/share/vim, but /etc is a more logical place for this kind of file.