From 9b63955b0989eb256a45cc55ca21ed51e3ce89cf Mon Sep 17 00:00:00 2001
From: Craig Andrews <candrews@integralblue.com>
Date: Tue, 8 Jun 2021 21:56:02 -0400
Subject: [PATCH] Fix shellcheck warnings in randomx_boost.sh

Checked using www.shellcheck.net

Specific issues addessed:
* https://github.com/koalaman/shellcheck/wiki/SC2002
* Use POSIX instead of bash for wider compatibility
* Fail on error
---
 scripts/randomx_boost.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/scripts/randomx_boost.sh b/scripts/randomx_boost.sh
index f74b34b2..3b60959d 100755
--- a/scripts/randomx_boost.sh
+++ b/scripts/randomx_boost.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh -e
 
 MSR_FILE=/sys/module/msr/parameters/allow_writes
 
@@ -8,9 +8,9 @@ else
 	modprobe msr allow_writes=on
 fi
 
-if cat /proc/cpuinfo | grep -E 'AMD Ryzen|AMD EPYC' > /dev/null;
+if grep -E 'AMD Ryzen|AMD EPYC' /proc/cpuinfo > /dev/null;
 	then
-	if cat /proc/cpuinfo | grep "cpu family[[:space:]]:[[:space:]]25" > /dev/null;
+	if grep "cpu family[[:space:]]:[[:space:]]25" /proc/cpuinfo > /dev/null;
 		then
 			echo "Detected Zen3 CPU"
 			wrmsr -a 0xc0011020 0x4480000000000
@@ -26,7 +26,7 @@ if cat /proc/cpuinfo | grep -E 'AMD Ryzen|AMD EPYC' > /dev/null;
 			wrmsr -a 0xc001102b 0x2000cc16
 			echo "MSR register values for Zen1/Zen2 applied"
 		fi
-elif cat /proc/cpuinfo | grep "Intel" > /dev/null;
+elif grep "Intel" /proc/cpuinfo > /dev/null;
 	then
 		echo "Detected Intel CPU"
 		wrmsr -a 0x1a4 0xf