diff --git a/scripts/pkgdep.sh b/scripts/pkgdep.sh
index 9a1bdef3d..5c87b040f 100755
--- a/scripts/pkgdep.sh
+++ b/scripts/pkgdep.sh
@@ -42,7 +42,7 @@ if [ -s /etc/redhat-release ]; then
 
 	# Includes Fedora, CentOS 7, RHEL 7
 	# Add EPEL repository for CUnit-devel and libunwind-devel
-	if echo "$ID $VERSION_ID" | egrep -q 'rhel 7|centos 7'; then
+	if echo "$ID $VERSION_ID" | grep -E -q 'rhel 7|centos 7'; then
 		if ! rpm --quiet -q epel-release; then
 			yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
 		fi
@@ -68,7 +68,7 @@ if [ -s /etc/redhat-release ]; then
 	# Additional dependencies for building pmem based backends
 	yum install -y libpmemblk-devel || true
 	# Additional dependencies for SPDK CLI - not available in rhel and centos
-	if ! echo "$ID $VERSION_ID" | egrep -q 'rhel 7|centos 7'; then
+	if ! echo "$ID $VERSION_ID" | grep -E -q 'rhel 7|centos 7'; then
 		yum install -y python3-configshell python3-pexpect
 	fi
 	# Additional dependencies for ISA-L used in compression
diff --git a/scripts/setup.sh b/scripts/setup.sh
index 3c168b311..59e6853a7 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -298,7 +298,7 @@ function cleanup_linux {
 	done
 	shopt -u extglob nullglob
 
-	files_to_clean+="$(ls -1 /dev/shm/* | egrep '(spdk_tgt|iscsi|vhost|nvmf|rocksdb|bdevio|bdevperf)_trace|spdk_iscsi_conns' || true) "
+	files_to_clean+="$(ls -1 /dev/shm/* | grep -E '(spdk_tgt|iscsi|vhost|nvmf|rocksdb|bdevio|bdevperf)_trace|spdk_iscsi_conns' || true) "
 	files_to_clean="$(readlink -e assert_not_empty $files_to_clean || true)"
 	if [[ -z "$files_to_clean" ]]; then
 		echo "Clean"
@@ -318,7 +318,7 @@ function cleanup_linux {
 
 	echo 'Cleaning'
 	for f in $files_to_clean; do
-		if ! echo "$opened_files" | egrep -q "^$f\$"; then
+		if ! echo "$opened_files" | grep -E -q "^$f\$"; then
 			echo "Removing:    $f"
 			rm $f
 		else
@@ -327,7 +327,7 @@ function cleanup_linux {
 	done
 
 	for dir in $dirs_to_clean; do
-	if ! echo "$opened_files" | egrep -q "^$dir\$"; then
+	if ! echo "$opened_files" | grep -E -q "^$dir\$"; then
 		echo "Removing:    $dir"
 		rmdir $dir
 	else
diff --git a/test/common/autotest_common.sh b/test/common/autotest_common.sh
index 3ea9d7689..5f6a876af 100644
--- a/test/common/autotest_common.sh
+++ b/test/common/autotest_common.sh
@@ -116,7 +116,7 @@ if [ "$(uname -s)" = "Linux" ]; then
 	export HUGEMEM=8192
 elif [ "$(uname -s)" = "FreeBSD" ]; then
 	MAKE=gmake
-	MAKEFLAGS=${MAKEFLAGS:--j$(sysctl -a | egrep -i 'hw.ncpu' | awk '{print $2}')}
+	MAKEFLAGS=${MAKEFLAGS:--j$(sysctl -a | grep -E -i 'hw.ncpu' | awk '{print $2}')}
 	DPDK_FREEBSD_DIR=/usr/local/share/dpdk/x86_64-native-bsdapp-clang
 	if [ -d $DPDK_FREEBSD_DIR ] && [ $SPDK_RUN_INSTALLED_DPDK -eq 1 ]; then
 		WITH_DPDK_DIR=$DPDK_FREEBSD_DIR
diff --git a/test/iscsi_tgt/sock/sock.sh b/test/iscsi_tgt/sock/sock.sh
index e41b9e651..a13606a0c 100755
--- a/test/iscsi_tgt/sock/sock.sh
+++ b/test/iscsi_tgt/sock/sock.sh
@@ -42,12 +42,12 @@ function waitfortcp() {
 		fi
 
 		if $have_ss_cmd; then
-			if $ns_cmd ss -ln | egrep -q "\s+$addr\s+"; then
+			if $ns_cmd ss -ln | grep -E -q "\s+$addr\s+"; then
 				break
 			fi
 		elif [[ "$(uname -s)" == "Linux" ]]; then
 			# For Linux, if system doesn't have ss, just assume it has netstat
-			if $ns_cmd netstat -an | grep -iw LISTENING | egrep -q "\s+$addr\$"; then
+			if $ns_cmd netstat -an | grep -iw LISTENING | grep -E -q "\s+$addr\$"; then
 				break
 			fi
 		fi
diff --git a/test/json_config/json_config.sh b/test/json_config/json_config.sh
index 16f2f98f6..a7722a91a 100755
--- a/test/json_config/json_config.sh
+++ b/test/json_config/json_config.sh
@@ -82,7 +82,7 @@ function tgt_check_notifications() {
                         echo "ERROR: got extra event: $event_line"
                         rc=false
                         continue
-                elif ! echo "$ev_type" | egrep -q  "^${ex_ev_type}\$" || ! echo "$ev_ctx" | egrep -q "^${ex_ev_ctx}\$"; then
+                elif ! echo "$ev_type" | grep -E -q  "^${ex_ev_type}\$" || ! echo "$ev_ctx" | grep -E -q "^${ex_ev_ctx}\$"; then
                         echo "ERROR: expected event '$1' but got '$event' (whole event line: $event_line)"
                         rc=false
                 fi