Undodir

vim/vimrc

@@ -43,8 +43,11 @@ if has('nvim')
 endif
 
 if has("persistent_undo")
+    if !isdirectory("~/.undodir")
+        call mkdir("~/.undodir", "p", 0770)
+    endif
+    set undodir=~/.undodir
     set undofile
-    set undodir=$HOME."/.undodir"
     augroup undodir
         autocmd!
         autocmd BufWritePre /tmp/* setlocal noundofile 

zsh/zshrc

@@ -19,6 +19,8 @@ zstyle ':completion:*' rehash true
 zstyle ':completion:*' matcher-list 'r:|[._-]=* r:|=*' 'm:{[:lower:][:upper:]}={[:upper:][:lower:]}' 'l:|=* r:|=*'
 zstyle ":completion:*" substitute 1
 
+autoload zmv
+
 autoload -Uz up-line-or-beginning-search down-line-or-beginning-search
 zle -N up-line-or-beginning-search
 zle -N down-line-or-beginning-search