diff --git a/tests/integration/test_system_containers.sh b/tests/integration/test_system_containers.sh
index 73aa05c8..eeb47b9f 100755
--- a/tests/integration/test_system_containers.sh
+++ b/tests/integration/test_system_containers.sh
@@ -19,7 +19,9 @@ OUTPUT=$(/bin/true)
 # Skip the test if OSTree or runc are not installed, or atomic has not --install --system
 ostree --version &>/dev/null || exit 77
 runc --version &>/dev/null || exit 77
-${ATOMIC}  install --help 2>&1 | grep -q -- --system || exit 77
+
+${ATOMIC}  install --help 2>&1 > help.out
+grep -q -- --system help.out || exit 77
 
 export ATOMIC_OSTREE_REPO=${WORK_DIR}/repo
 export ATOMIC_OSTREE_CHECKOUT_PATH=${WORK_DIR}/checkout
@@ -29,7 +31,8 @@ docker save atomic-test-system > ${WORK_DIR}/atomic-test-system.tar
 ${ATOMIC} pull dockertar:/${WORK_DIR}/atomic-test-system.tar
 
 # Check that the branch is created in the OSTree repository
-ostree --repo=${ATOMIC_OSTREE_REPO} refs | grep -q "ociimage/atomic-test-system-latest"
+ostree --repo=${ATOMIC_OSTREE_REPO} refs > refs
+grep -q "ociimage/atomic-test-system-latest" refs
 
 ${ATOMIC} images list > ${WORK_DIR}/images
 grep -q "atomic-test-system" ${WORK_DIR}/images
@@ -53,15 +56,24 @@ trap teardown EXIT
 
 ${ATOMIC} --debug install --name=${NAME} --set=RECEIVER=${SECRET} --system oci:atomic-test-system
 
-${ATOMIC} ps | grep -q "test-system"
-${ATOMIC} ps --json | grep -q "test-system"
-${ATOMIC} ps --all | grep -q "test-system"
-${ATOMIC} ps --json --all | grep -q "test-system"
-${ATOMIC} ps --filter id=test-system | grep -q "test-system"
-${ATOMIC} ps --no-trunc | grep -q "test-system"
-${ATOMIC} ps --quiet | grep -q "test-system"
-${ATOMIC} ps -aq --no-trunc --filter id=test-system | grep -q "test-system"
-if ${ATOMIC} ps -aq --no-trunc --filter id=non-existing-system | grep -q "test-system"; then
+${ATOMIC} ps > ps.out
+grep -q "test-system" ps.out
+${ATOMIC} ps --json > ps.out
+grep -q "test-system" ps.out
+${ATOMIC} ps --all > ps.out
+grep -q "test-system" ps.out
+${ATOMIC} ps --json --all > ps.out
+grep -q "test-system" ps.out
+${ATOMIC} ps --filter id=test-system > ps.out
+grep -q "test-system" ps.out
+${ATOMIC} ps --no-trunc > ps.out
+grep -q "test-system" ps.out
+${ATOMIC} ps --quiet > ps.out
+grep -q "test-system" ps.out
+${ATOMIC} ps -aq --no-trunc --filter id=test-system > ps.out
+grep -q "test-system" ps.out
+${ATOMIC} ps -aq --no-trunc --filter id=non-existing-system > ps.out
+if grep -q "test-system" ps.out; then
     exit 1
 fi
 
@@ -108,9 +120,11 @@ test \! -e ${ATOMIC_OSTREE_CHECKOUT_PATH}/${NAME}.1
 
 
 ${ATOMIC} pull docker.io/busybox
-ostree --repo=${ATOMIC_OSTREE_REPO} refs | grep busybox
+ostree --repo=${ATOMIC_OSTREE_REPO} refs > refs
+grep -q busybox refs
 ${ATOMIC} images delete -f busybox
-OUTPUT=$(! ostree --repo=${ATOMIC_OSTREE_REPO} refs | grep -c busybox)
+ostree --repo=${ATOMIC_OSTREE_REPO} refs > refs
+OUTPUT=$(! grep -c busybox refs)
 if test $OUTPUT \!= 0; then
     exit 1
 fi
@@ -121,7 +135,8 @@ ostree --repo=${ATOMIC_OSTREE_REPO} refs | grep busybox
 ${ATOMIC} images delete -f atomic-test-system
 ${ATOMIC} images delete -f busybox
 ${ATOMIC} images prune
-OUTPUT=$(! ostree --repo=${ATOMIC_OSTREE_REPO} refs | grep -c ociimage)
+ostree --repo=${ATOMIC_OSTREE_REPO} refs > refs
+OUTPUT=$(! grep -c ociimage refs)
 if test $OUTPUT \!= 0; then
     exit 1
 fi