From 9be78e8cd9d28d979076885a0145f3d30080cdbb Mon Sep 17 00:00:00 2001
From: xyz <gky44px1999@gmail.com>
Date: Wed, 25 Aug 2021 17:52:56 -0700
Subject: mvtr, rename upper to lower, space to _

---
 .local/bin/mvtr | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100755 .local/bin/mvtr

diff --git a/.local/bin/mvtr b/.local/bin/mvtr
new file mode 100755
index 00000000..574ccd9b
--- /dev/null
+++ b/.local/bin/mvtr
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# can use ls pipe to sed pipe to bash, similar to eval? see comment at link:
+# link also show perl-rename approach
+# https://linuxconfig.org/rename-all-files-from-uppercase-to-lowercase-characters
+# if only change ' ' to '_' `rename` might be sufficient, for upper to lower case might need perl-rename if want concise
+# shellcheck suggest use $1 for sh -c for better error messaging? see SC2156
+find "$@" -depth -execdir sh -c 'mv -nvT -- "$0" "$(echo "$0" | tr "[:upper:] " "[:lower:]_")"' '{}' \;
-- 
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