" Make a backup (i. e. 'file~') and save it.
set backup
-" create ~/tmp/ if it doesn't exist and use ~/tmp to save the
-" backups into
+" create ~/tmp/vimbak if it doesn't exist and use it to save the backups
if has("unix")
if !isdirectory(expand("~/tmp/vimbak/."))
!mkdir -p ~/tmp/vimbak
endif
+ set backupdir=~/tmp/vimbak
endif
-set backupdir=~/tmp/vimbak
+
+" Use modelines
+set modelines=5