From 5a41e3596806db431194bcf2dec22ee8bdd7682b Mon Sep 17 00:00:00 2001
From: Klesh Wong <klesh@kleshwong.com>
Date: Sun, 17 Jan 2021 17:24:48 +0800
Subject: [PATCH] [feature] remove files with name older than N days

---
 devops/bin/rm-ndays-ago.sh | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100755 devops/bin/rm-ndays-ago.sh

diff --git a/devops/bin/rm-ndays-ago.sh b/devops/bin/rm-ndays-ago.sh
new file mode 100755
index 0000000..cc96450
--- /dev/null
+++ b/devops/bin/rm-ndays-ago.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+set -e
+
+if [ "$#" -lt 2 ] ;then
+    echo "Remove files/directories which name contains DatePart and before n days ago"
+    echo
+    echo "  Usage $0 <dir> <days>"
+    exit 1
+fi
+
+TARGET_DIR=${1%/}
+THRES_DATE=$(date -d "$2 days ago" +%Y%m%d)
+
+for entry in $(ls "$TARGET_DIR") ;do
+    DATE=$(echo "$entry" | grep -oP '\b(\d{8})\b')
+    if [ -n "DATE" ] && [ "$DATE" -lt "$THRES_DATE" ] ;then
+        rm -f $TARGET_DIR/$entry
+    fi
+done