Add git-each

Author: jwiegley

git-each

@@ -0,0 +1,12 @@
+#!/bin/bash -e
+
+DIRS="."
+if [[ "$1" == --dir ]]; then
+    shift 1
+    DIRS="$1"
+    shift 1
+fi
+
+exec find $DIRS \( -path '*/.git/config' -o \
+                   -regex '.*/.git/.*/config' \) -type f -print0 \
+         | parallel -0 --bar --delay 1 -k "git --git-dir={//} $@"