grep: add utility to get log file from syno partition

Signed-off-by: AuxXxilium <info@auxxxilium.tech>

files/initrd/opt/arc/grep.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+[[ -z "${ARC_PATH}" || ! -d "${ARC_PATH}/include" ]] && ARC_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
+
+. ${ARC_PATH}/include/functions.sh
+
+if findAndMountDSMRoot; then
+  if [ -f "${DSMROOT_PATH}/usr/log/dmesg.txt" ]; then
+    LOG="$(cat ${DSMROOT_PATH}/usr/log/dmesg.txt)"
+    echo -e "${LOG}"
+  else
+    echo "Can't find Logfile"
+  fi
+else
+  echo "Can't find DSM Partition"
+fi