linux-kernel - [PATCH v2 3/6] selftests: powerpc: Use "grep -E" instead of "egrep"

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Date:   Wed, 23 Nov 2022 09:03:30 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Shuah Khan <shuah@...nel.org>,
        Shuah Khan <skhan@...uxfoundation.org>
Cc:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/6] selftests: powerpc: Use "grep -E" instead of "egrep"

The latest version of grep claims the egrep is now obsolete so the build
now contains warnings that look like:
	egrep: warning: egrep is obsolescent; using grep -E
fix this up by moving the related file to use "grep -E" instead.

  sed -i "s/egrep/grep -E/g" `grep egrep -rwl tools/testing/selftests/powerpc`

Here are the steps to install the latest grep:

  wget http://ftp.gnu.org/gnu/grep/grep-3.8.tar.gz
  tar xf grep-3.8.tar.gz
  cd grep-3.8 && ./configure && make
  sudo make install
  export PATH=/usr/local/bin:$PATH

Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
 tools/testing/selftests/powerpc/scripts/hmi.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/powerpc/scripts/hmi.sh b/tools/testing/selftests/powerpc/scripts/hmi.sh
index dcdb392..bcc7b6b 100755
--- a/tools/testing/selftests/powerpc/scripts/hmi.sh
+++ b/tools/testing/selftests/powerpc/scripts/hmi.sh
@@ -36,7 +36,7 @@ trap "ppc64_cpu --smt-snooze-delay=100" 0 1
 
 # for each chip+core combination
 # todo - less fragile parsing
-egrep -o 'OCC: Chip [0-9a-f]+ Core [0-9a-f]' < /sys/firmware/opal/msglog |
+grep -E -o 'OCC: Chip [0-9a-f]+ Core [0-9a-f]' < /sys/firmware/opal/msglog |
 while read chipcore; do
 	chip=$(echo "$chipcore"|awk '{print $3}')
 	core=$(echo "$chipcore"|awk '{print $5}')
-- 
2.1.0