From 4c0b9c5f859cebfc98486a7713b69445b8669a64 Mon Sep 17 00:00:00 2001
From: MilhouseVH <milhouseVH.github@nmacleod.com>
Date: Thu, 10 May 2018 07:12:22 +0100
Subject: [PATCH] init: stop using backticks, minor cleanup

---
 packages/sysutils/busybox/scripts/init | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/packages/sysutils/busybox/scripts/init b/packages/sysutils/busybox/scripts/init
index 08af4e7936..8305e09095 100755
--- a/packages/sysutils/busybox/scripts/init
+++ b/packages/sysutils/busybox/scripts/init
@@ -59,7 +59,7 @@
   NBD_DEVS="0"
   FLASH_FREE_MIN="5"
 
-  INSTALLED_MEMORY=`cat /proc/meminfo | grep 'MemTotal:' | awk '{print $2}'`
+  INSTALLED_MEMORY=$(cat /proc/meminfo | grep 'MemTotal:' | awk '{print $2}')
   SYSTEM_TORAM_LIMIT=1024000
 
   LIVE="no"
@@ -324,7 +324,7 @@
 
     mount_common "$NBD_DEV" "$2" "$3" "$4"
 
-    NBD_DEVS=$(( ${NBD_DEVS} + 1 ))
+    NBD_DEVS=$(( NBD_DEVS + 1 ))
   }
 
   mount_nfs() {
@@ -693,7 +693,7 @@
 
     if [ -n "$disk" ]; then
       if [ -n "$OVERLAY" ]; then
-        OVERLAY_DIR=`cat /sys/class/net/eth0/address | tr -d :`
+        OVERLAY_DIR=$(cat /sys/class/net/eth0/address | tr -d :)
 
         mount_part "$disk" "/storage" "rw,noatime"
         mkdir -p /storage/$OVERLAY_DIR
@@ -798,9 +798,9 @@
 
   check_update() {
     progress "Checking for updates"
-    UPDATE_TAR=`ls -1 "$UPDATE_DIR"/*.tar 2>/dev/null | head -n 1`
-    UPDATE_IMG_GZ=`ls -1 "$UPDATE_DIR"/*.img.gz 2>/dev/null | head -n 1`
-    UPDATE_IMG=`ls -1 "$UPDATE_DIR"/*.img 2>/dev/null | head -n 1`
+    UPDATE_TAR=$(ls -1 "$UPDATE_DIR"/*.tar 2>/dev/null | head -n 1)
+    UPDATE_IMG_GZ=$(ls -1 "$UPDATE_DIR"/*.img.gz 2>/dev/null | head -n 1)
+    UPDATE_IMG=$(ls -1 "$UPDATE_DIR"/*.img 2>/dev/null | head -n 1)
 
     if ! [ -f "$UPDATE_DIR/$UPDATE_KERNEL" -a -f "$UPDATE_DIR/$UPDATE_SYSTEM" ] &&
        ! [ -f "$UPDATE_TAR" -o -f "$UPDATE_IMG_GZ" -o -f "$UPDATE_IMG" ]; then
@@ -997,8 +997,8 @@
     # old KERNEL+SYSTEM+free space - new KERNEL+SYSTEM must be higher than 5MB
     # at least 5MB free after update
 
-    TMP_SIZE=$(($OLD_KERNEL+$OLD_SYSTEM+$FLASH_FREE-$NEW_KERNEL-$NEW_SYSTEM))
-    FLASH_FREE_MIN=$(($FLASH_FREE_MIN*1024*1024))
+    TMP_SIZE=$((OLD_KERNEL + OLD_SYSTEM + FLASH_FREE - NEW_KERNEL - NEW_SYSTEM))
+    FLASH_FREE_MIN=$((FLASH_FREE_MIN * 1024 * 1024))
 
     if [ $TMP_SIZE -ge $FLASH_FREE_MIN ]; then
       echo "Checking size: OK"
@@ -1118,7 +1118,7 @@
     INIT_UNIT="--unit=fs-resize.target"
   fi
 
-  BACKUP_FILE=`ls -1 /sysroot/storage/.restore/??????????????.tar 2>/dev/null | head -n 1`
+  BACKUP_FILE=$(ls -1 /sysroot/storage/.restore/??????????????.tar 2>/dev/null | head -n 1)
   if [ -f "$BACKUP_FILE" ] ; then
     INIT_UNIT="--unit=backup-restore.target"
   fi