diff --git a/README.rst b/README.rst
index f899272..9008912 100644
--- a/README.rst
+++ b/README.rst
@@ -204,6 +204,27 @@ To work around API limitation, you must first generate a
 
 .. _Github API token: https://github.com/settings/tokens
 
+Custom Run-in command
+=====================
+
+gitaggregate allows you to execute any custom command on all the repositories
+
+For exemple, if you want to know all the local diffs run:
+
+.. code-block:: bash
+
+   $ gitaggregate run-in --run-in-command 'git status --short'
+
+Result sample
+
+.. code-block:: bash
+
+    (INFO) [11:04:04] git_aggregator.repo  pos   Repo /opt/grap_dev/grap-odoo-env-8.0/src/pos :
+        R  pos_margin/__openerp__.py -> pos_margin/__manifest__.py
+        R  pos_order_load/__openerp__.py -> pos_order_load/__manifest__.py
+        ?? test/
+
+
 Changes
 =======
 
diff --git a/git_aggregator/main.py b/git_aggregator/main.py
index 6bf7d41..d3cf567 100644
--- a/git_aggregator/main.py
+++ b/git_aggregator/main.py
@@ -27,6 +27,8 @@
 
 _LOG_LEVEL_STRINGS = ['CRITICAL', 'ERROR', 'WARNING', 'INFO', 'DEBUG']
 
+_COMMAND_LIST = ['aggregate', 'show-closed-prs', 'show-all-prs', 'run-in']
+
 
 def _log_level_string_to_int(log_level_string):
     if log_level_string not in _LOG_LEVEL_STRINGS:
@@ -134,6 +136,15 @@ def get_parser():
              '              a github.com remote and a\n'
              '              refs/pull/NNN/head ref in the merge section.\n'
              'show-closed-prs: show pull requests that are not open anymore.\n'
+             'run-in: run a custom shell command, defined in the.\n'
+             '              --run-in-command argument.'
+    )
+
+    main_parser.add_argument(
+        '-ric', '--run-in-command',
+        dest='run_in_command',
+        type=str,
+        help='Command to run for each repository'
     )
 
     return main_parser
@@ -153,9 +164,7 @@ def main():
     )
 
     try:
-        if args.config and \
-                args.command in \
-                ('aggregate', 'show-closed-prs', 'show-all-prs'):
+        if args.config and args.command in _COMMAND_LIST:
             run(args)
         else:
             parser.print_help()
@@ -208,6 +217,8 @@ def aggregate_repo(repo, args, sem, err_queue):
             repo.show_closed_prs()
         elif args.command == 'show-all-prs':
             repo.show_all_prs()
+        elif args.command == 'run-in':
+            repo.run_in(args.run_in_command)
     except Exception:
         err_queue.put_nowait(sys.exc_info())
     finally:
diff --git a/git_aggregator/repo.py b/git_aggregator/repo.py
index d199af6..7efff71 100644
--- a/git_aggregator/repo.py
+++ b/git_aggregator/repo.py
@@ -380,3 +380,16 @@ def show_all_prs(self):
                 logger.info(
                     '{url} in state {state} ({merged})'.format(**pr_info)
                 )
+
+    def run_in(self, run_in_command):
+        """Run a custom shell command into the current repository
+        and log result, if any."""
+        result = self.log_call(
+            run_in_command.split(" "),
+            callwith=subprocess.check_output,
+            cwd=self.cwd
+        )
+        if result:
+            logger.info("{folder} : \n{result}".format(
+                folder=self.cwd, result=result))
+        return result