diff --git a/error_checker.sh b/error_checker.sh
index 8140af2..4322772 100755
--- a/error_checker.sh
+++ b/error_checker.sh
@@ -1,51 +1,50 @@
 #!/bin/bash
 
 echo -e "connect: network is unreachable"
-cat $1 |grep "connect: network is unreachable"|wc -l
+grep -Rh "connect: network is unreachable" $1 | wc -l
 echo -e ""
 echo -e "Failed to open cgroups"
-cat $1 |grep "Failed to open cgroups"|wc -l
+grep -Rh "Failed to open cgroups" $1 | wc -l
 echo -e ""
 echo -e "PLEG is not healthy"
-cat $1 |grep "PLEG is not healthy"|wc -l
+grep -Rh "PLEG is not healthy" $1 | wc -l
 echo -e ""
 echo -e "exited with status 255"
-cat $1 |grep "exited with status 255"|wc -l
+grep -Rh "exited with status 255" $1 | wc -l
 echo -e ""
 echo -e "exited with status 1"
-cat $1 |grep "exited with status 1"|wc -l
+grep -Rh "exited with status 1" $1 | wc -l
 echo -e ""
 echo -e "exited with status 2"
-cat $1 |grep "exited with status 2"|wc -l
+grep -Rh "exited with status 2" $1 | wc -l
 echo -e ""
 echo -e "PullImage from image service failed"
-cat $1 |grep "PullImage from image service failed"|sort |uniq|wc -l
+grep -Rh "PullImage from image service failed" $1 | sort | uniq | wc -l
 echo -e ""
 echo -e "No CNI configuration file in"
-cat $1 |grep "No CNI configuration file in"|sort |uniq|wc -l
+grep -Rh "No CNI configuration file in" $1 | sort | uniq | wc -l
 echo -e ""
 echo -e "Error getting ContainerStatus for containerID"
-cat $1 |grep "Error getting ContainerStatus for containerID"|sort |uniq|wc -l
+grep -Rh "Error getting ContainerStatus for containerID" $1 | sort | uniq | wc -l
 echo -e ""
 echo -e "network is not ready: container runtime network not ready"
-cat $1 |grep "network is not ready: container runtime network not ready"|sort |uniq|wc -l
+grep -Rh "network is not ready: container runtime network not ready" $1 | sort | uniq | wc -l
 echo -e ""
 echo -e "can't find the container with id"
-cat $1 |grep "can't find the container with id"|sort |uniq|wc -l
+grep -Rh "can't find the container with id" $1 | sort | uniq | wc -l
 echo -e ""
 echo -e "DeleteContainer returned error"
-cat $1 |grep "DeleteContainer returned error"|sort |uniq|wc -l
+grep -Rh "DeleteContainer returned error" $1 | sort | uniq | wc -l
 echo -e ""
 echo -e "timeout"
-cat $1 |grep "timeout"|sort |uniq|wc -l
+grep -Rh "timeout" $1 | sort | uniq | wc -l
 echo -e ""
 echo -e "failed to connect service"
-cat $1 |grep "failed to connect service"|sort |uniq|wc -l
+grep -Rh "failed to connect service" $1 | sort | uniq | wc -l
 echo -e ""
 echo -e "Connection reset by peer"
-cat $1 |grep "Connection reset by peer"|sort |uniq|wc -l
+grep -Rh "Connection reset by peer" $1 | sort | uniq | wc -l
 echo -e ""
 echo -e "Layer4 timeout"
-cat $1 |grep "Connection reset by peer"|sort |uniq|wc -l
+grep -Rh "Connection reset by peer" $1 | sort | uniq | wc -l
 echo -e ""
-