Add list command

Author: arrrggghhh

README.md

@@ -102,6 +102,7 @@
 * [Extract file from another branch.](https://github.com/git-tips/tips#extract-file-from-another-branch)
 * [List only the root and merge commits.](https://github.com/git-tips/tips#list-only-the-root-and-merge-commits)
 * [Merge previous two commits into one.](https://github.com/git-tips/tips#merge-previous-two-commits-into-one)
+* [List of git repositories in multiple directories.](https://github.com/git-tips/tips#list-of-git-repositories-in-multiple-directories)
 
 <!-- Don’t remove or change the comment below – that can break automatic updates. More info at <http://npm.im/doxie.inject>. -->
 <!-- @doxie.inject end toc -->
@@ -695,5 +696,10 @@ git log --first-parent
 git rebase --interactive HEAD~2
 ```
 
+## List of git repositories in multiple directories.
+```sh
+find /path1 /path2 /path3 -regex '.*\.git' -type d -print0 | xargs -0 -I {} dirname {}
+```
+
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 <!-- @doxie.inject end -->

tips.json

@@ -311,4 +311,7 @@
 }, {
 	"title": "Merge previous two commits into one.",
   "tip": "git rebase --interactive HEAD~2"
+}, {
+	"title": "List of git repositories in multiple directories.",
+  "tip": "find /path1 /path2 /path3 -regex '.*\\.git' -type d -print0 | xargs -0 -I {} dirname {}"
 }]