diff --git a/src/bin/gpfts/failover/docker_master_check_back.sh b/src/bin/gpfts/failover/docker_master_check_back.sh
index 9b1ab8806f7..0db97596ac5 100755
--- a/src/bin/gpfts/failover/docker_master_check_back.sh
+++ b/src/bin/gpfts/failover/docker_master_check_back.sh
@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 
 if !type gpssh >/dev/null 2>&1; then 
     echo "[FATAL]:- gpssh not exist, script Exits!"
diff --git a/src/bin/gpfts/failover/docker_segment_check_back.sh b/src/bin/gpfts/failover/docker_segment_check_back.sh
index 2776415b40e..94bb4b3c4da 100755
--- a/src/bin/gpfts/failover/docker_segment_check_back.sh
+++ b/src/bin/gpfts/failover/docker_segment_check_back.sh
@@ -1,4 +1,4 @@
-
+#!/usr/bin/env bash
 
 if !type gpssh >/dev/null 2>&1; then 
     echo "[FATAL]:- gpssh not exist, script Exits!"
diff --git a/src/bin/gpfts/failover/docker_standby_check_back.sh b/src/bin/gpfts/failover/docker_standby_check_back.sh
index 81abd790efb..fe2dce7bca3 100755
--- a/src/bin/gpfts/failover/docker_standby_check_back.sh
+++ b/src/bin/gpfts/failover/docker_standby_check_back.sh
@@ -1,4 +1,4 @@
-
+#!/usr/bin/env bash
 
 if !type gpssh >/dev/null 2>&1; then 
     echo "[FATAL]:- gpssh not exist, script Exits!"
diff --git a/src/bin/gpfts/failover/master_check_back.sh b/src/bin/gpfts/failover/master_check_back.sh
index 9b1ab8806f7..0db97596ac5 100755
--- a/src/bin/gpfts/failover/master_check_back.sh
+++ b/src/bin/gpfts/failover/master_check_back.sh
@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 
 if !type gpssh >/dev/null 2>&1; then 
     echo "[FATAL]:- gpssh not exist, script Exits!"
diff --git a/src/bin/gpfts/failover/segment_all_down.sh b/src/bin/gpfts/failover/segment_all_down.sh
index 954801b923b..1121f54fbbc 100755
--- a/src/bin/gpfts/failover/segment_all_down.sh
+++ b/src/bin/gpfts/failover/segment_all_down.sh
@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 
 if !type pg_ctl >/dev/null 2>&1; then 
     echo "[FATAL]:- pg_ctl not exist, script Exits!"
diff --git a/src/bin/gpfts/failover/segment_check_back.sh b/src/bin/gpfts/failover/segment_check_back.sh
index 91f57d69107..ec55ab64982 100755
--- a/src/bin/gpfts/failover/segment_check_back.sh
+++ b/src/bin/gpfts/failover/segment_check_back.sh
@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 
 if !type gprecoverseg >/dev/null 2>&1; then 
     echo "[FATAL]:- gprecoverseg not exist, script Exits!"
diff --git a/src/bin/gpfts/failover/standby_check_back.sh b/src/bin/gpfts/failover/standby_check_back.sh
index 81abd790efb..fe2dce7bca3 100755
--- a/src/bin/gpfts/failover/standby_check_back.sh
+++ b/src/bin/gpfts/failover/standby_check_back.sh
@@ -1,4 +1,4 @@
-
+#!/usr/bin/env bash
 
 if !type gpssh >/dev/null 2>&1; then 
     echo "[FATAL]:- gpssh not exist, script Exits!"