diff --git a/scripts/install.sh b/scripts/install.sh
index d4835ce10..b79e72c4f 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -28,7 +28,7 @@ elif grep -Eqi "openSUSE" /etc/*-release; then
 	zypper install cron wget curl zip unzip
 elif grep -Eqi "FreeBSD" /etc/*-release; then
 	OSNAME='freebsd'
-elif grep -Eq "EulerOS" /etc/*-release || grep -Eq "openEuler" /etc/*-release; then
+elif grep -Eqi "EulerOS" /etc/*-release || grep -Eqi "openEuler" /etc/*-release; then
 	OSNAME='euler'
 	yum install -y wget curl zip unzip tar crontabs
 elif grep -Eqi "CentOS" /etc/issue || grep -Eqi "CentOS" /etc/*-release; then
diff --git a/scripts/install_dev.sh b/scripts/install_dev.sh
index a0b16d767..17ca7274e 100755
--- a/scripts/install_dev.sh
+++ b/scripts/install_dev.sh
@@ -32,7 +32,7 @@ elif grep -Eq "openSUSE" /etc/*-release; then
 	zypper refresh
 elif grep -Eq "FreeBSD" /etc/*-release; then
 	OSNAME='freebsd'
-elif grep -Eq "EulerOS" /etc/*-release || grep -Eq "openEuler" /etc/*-release; then
+elif grep -Eqi "EulerOS" /etc/*-release || grep -Eqi "openEuler" /etc/*-release; then
 	OSNAME='euler'
 	yum install -y wget curl zip unzip tar crontabs
 elif grep -Eqi "CentOS" /etc/issue || grep -Eqi "CentOS" /etc/*-release; then
diff --git a/scripts/update.sh b/scripts/update.sh
index 33c58ed19..9a8b7be25 100755
--- a/scripts/update.sh
+++ b/scripts/update.sh
@@ -25,7 +25,7 @@ if [ ${_os} == "Darwin" ]; then
 elif grep -Eqi "openSUSE" /etc/*-release; then
 	OSNAME='opensuse'
 	zypper refresh
-elif grep -Eq "EulerOS" /etc/*-release || grep -Eq "openEuler" /etc/*-release; then
+elif grep -Eqi "EulerOS" /etc/*-release || grep -Eqi "openEuler" /etc/*-release; then
 	OSNAME='euler'
 elif grep -Eqi "FreeBSD" /etc/*-release; then
 	OSNAME='freebsd'
diff --git a/scripts/update_dev.sh b/scripts/update_dev.sh
index b241a5598..5a40237d0 100755
--- a/scripts/update_dev.sh
+++ b/scripts/update_dev.sh
@@ -25,7 +25,7 @@ if [ ${_os} == "Darwin" ]; then
 elif grep -Eqi "openSUSE" /etc/*-release; then
 	OSNAME='opensuse'
 	zypper refresh
-elif grep -Eq "EulerOS" /etc/*-release || grep -Eq "openEuler" /etc/*-release; then
+elif grep -Eqi "EulerOS" /etc/*-release || grep -Eqi "openEuler" /etc/*-release; then
 	OSNAME='euler'
 elif grep -Eqi "FreeBSD" /etc/*-release; then
 	OSNAME='freebsd'