diff --git a/hack/.shellcheck_failures b/hack/.shellcheck_failures
index f7ff930d77a..88095bcd82f 100644
--- a/hack/.shellcheck_failures
+++ b/hack/.shellcheck_failures
@@ -109,10 +109,6 @@
 ./test/e2e_node/conformance/run_test.sh
 ./test/e2e_node/environment/setup_host.sh
 ./test/e2e_node/gubernator.sh
-./test/e2e_node/jenkins/conformance/conformance-jenkins.sh
-./test/e2e_node/jenkins/copy-e2e-image.sh
-./test/e2e_node/jenkins/e2e-node-jenkins.sh
-./test/e2e_node/jenkins/ubuntu-14.04-nvidia-install.sh
 ./test/images/image-util.sh
 ./test/images/pets/redis-installer/on-start.sh
 ./test/images/pets/zookeeper-installer/install.sh
diff --git a/test/e2e_node/jenkins/conformance/conformance-jenkins.sh b/test/e2e_node/jenkins/conformance/conformance-jenkins.sh
index 7758d0b2df6..2d922d2286b 100755
--- a/test/e2e_node/jenkins/conformance/conformance-jenkins.sh
+++ b/test/e2e_node/jenkins/conformance/conformance-jenkins.sh
@@ -22,7 +22,7 @@ set -x
 
 : "${1:?Usage test/e2e_node/jenkins/conformance-node-jenkins.sh <path to properties>}"
 
-. $1
+. "${1}"
 
 make generated_files
 
@@ -30,7 +30,7 @@ WORKSPACE=${WORKSPACE:-"/tmp/"}
 ARTIFACTS=${WORKSPACE}/_artifacts
 TIMEOUT=${TIMEOUT:-"45m"}
 
-mkdir -p ${ARTIFACTS}
+mkdir -p "${ARTIFACTS}"
 
 go run test/e2e_node/runner/remote/run_remote.go  --test-suite=conformance \
   --logtostderr --vmodule=*=4 --ssh-env="gce" --ssh-user="$GCE_USER" \
diff --git a/test/e2e_node/jenkins/copy-e2e-image.sh b/test/e2e_node/jenkins/copy-e2e-image.sh
index 18ff7c6310b..8d1db0bea36 100755
--- a/test/e2e_node/jenkins/copy-e2e-image.sh
+++ b/test/e2e_node/jenkins/copy-e2e-image.sh
@@ -37,8 +37,8 @@ TO_PROJECT=$3
 TO_IMAGE=$4
 
 echo "Copying image $FROM_IMAGE from project $FROM_PROJECT to project $TO_PROJECT as image $TO_IMAGE..."
-gcloud compute --project $TO_PROJECT disks create $TO_IMAGE --image=https://www.googleapis.com/compute/v1/projects/$FROM_PROJECT/global/images/$FROM_IMAGE
-gcloud compute --project $TO_PROJECT images create $TO_IMAGE \
-  --source-disk=$TO_IMAGE \
+gcloud compute --project "${TO_PROJECT}" disks create "${TO_IMAGE}" --image=https://www.googleapis.com/compute/v1/projects/"${FROM_PROJECT}/global/images/""${FROM_IMAGE}"
+gcloud compute --project "${TO_PROJECT}" images create "${TO_IMAGE}" \
+  --source-disk="${TO_IMAGE}" \
   --description="Cloned from projects/$2/global/images/$1 by $USER on $(date)"
-gcloud -q compute --project $TO_PROJECT disks delete $TO_IMAGE
+gcloud -q compute --project "${TO_PROJECT}" disks delete "${TO_IMAGE}"
diff --git a/test/e2e_node/jenkins/e2e-node-jenkins.sh b/test/e2e_node/jenkins/e2e-node-jenkins.sh
index 99a4ac14bc3..cd2f2e46836 100755
--- a/test/e2e_node/jenkins/e2e-node-jenkins.sh
+++ b/test/e2e_node/jenkins/e2e-node-jenkins.sh
@@ -26,7 +26,7 @@ set -x
 
 : "${1:?Usage test/e2e_node/jenkins/e2e-node-jenkins.sh <path to properties>}"
 
-. $1
+. "${1}"
 
 # indirectly generates test/e2e/generated/bindata.go too
 make generated_files
@@ -39,7 +39,7 @@ WORKSPACE=${WORKSPACE:-"/tmp/"}
 ARTIFACTS=${WORKSPACE}/_artifacts
 TIMEOUT=${TIMEOUT:-"45m"}
 
-mkdir -p ${ARTIFACTS}
+mkdir -p "${ARTIFACTS}"
 
 go run test/e2e_node/runner/remote/run_remote.go  --logtostderr --vmodule=*=4 \
   --ssh-env="gce" --ssh-user="$GCE_USER" --zone="$GCE_ZONE" --project="$GCE_PROJECT" \
diff --git a/test/e2e_node/jenkins/ubuntu-14.04-nvidia-install.sh b/test/e2e_node/jenkins/ubuntu-14.04-nvidia-install.sh
index f83e53c18ec..f74af9a98fe 100644
--- a/test/e2e_node/jenkins/ubuntu-14.04-nvidia-install.sh
+++ b/test/e2e_node/jenkins/ubuntu-14.04-nvidia-install.sh
@@ -23,7 +23,7 @@ if ! dpkg-query -W cuda; then
   dpkg -i ./cuda-repo-ubuntu1404_8.0.61-1_amd64.deb
   apt-get update
   apt-get install cuda -y
-  apt-get install linux-headers-$(uname -r) -y
+  apt-get install "linux-headers-$(uname -r)" -y
 fi
 ## Pre-loads kernel modules
 nvidia-smi