Clean up redirection ops in tests (#38827)

test/units/TEST-21-DFUZZER.sh

@@ -4,7 +4,7 @@ set -eux
 set -o pipefail
 
 # check dfuzzer is present before testing
-if ! command -v dfuzzer &>/dev/null; then
+if ! command -v dfuzzer >/dev/null; then
     echo "dfuzzer is not installed, skipping" | tee --append /skipped
     exit 77
 fi

test/units/TEST-46-HOMED.sh

@@ -537,7 +537,7 @@ for opt in json multiplexer output synthesize with-dropin with-nss with-varlink;
 done
 
 # FIXME: sshd seems to crash inside asan currently, skip the actual ssh test hence
-if command -v ssh &>/dev/null && command -v sshd &>/dev/null && ! [[ -v ASAN_OPTIONS ]]; then
+if command -v ssh >/dev/null && command -v sshd >/dev/null && ! [[ -v ASAN_OPTIONS ]]; then
     at_exit() {
         set +e
 

test/units/TEST-50-DISSECT.DDI.sh

@@ -9,7 +9,7 @@ mount -t ddi "$MINIMAL_IMAGE.gpt" "$dir" -o ro,X-mount.mkdir,discard
 umount -R "$dir"
 
 # Test systemd-repart --make-ddi=:
-if [[ -z "${OPENSSL_CONFIG:?}" ]] || ! command -v mksquashfs &>/dev/null; then
+if [[ -z "${OPENSSL_CONFIG:?}" ]] || ! command -v mksquashfs >/dev/null; then
     echo "Skipping --make-ddi= tests"
     exit 0
 fi

test/units/TEST-74-AUX-UTILS.ssh.sh

@@ -3,7 +3,7 @@
 set -eux
 set -o pipefail
 
-if ! command -v ssh &> /dev/null || ! command -v sshd &> /dev/null ; then
+if ! command -v ssh >/dev/null || ! command -v sshd >/dev/null ; then
     echo "ssh/sshd not found, skipping test." >&2
     exit 0
 fi
@@ -58,11 +58,11 @@ ssh -o StrictHostKeyChecking=no -v -i "$ROOTID" .host cat /etc/machine-id | cmp
 ssh -o StrictHostKeyChecking=no -v -i "$ROOTID" unix/run/ssh-unix-local/socket cat /etc/machine-id | cmp - /etc/machine-id
 ssh -o StrictHostKeyChecking=no -v -i "$ROOTID" machine/.host cat /etc/machine-id | cmp - /etc/machine-id
 
-modprobe vsock_loopback ||:
+modprobe vsock_loopback || :
 if test -e /dev/vsock -a -d /sys/module/vsock_loopback ; then
     ssh -o StrictHostKeyChecking=no -v -i "$ROOTID" vsock/1 cat /etc/machine-id | cmp - /etc/machine-id
 
-    if ! command -v scp &> /dev/null ; then
+    if ! command -v scp >/dev/null ; then
         echo "scp not found, skipping subtest" >&2
     else
         OUT_FILE=$(mktemp -u)

test/units/TEST-75-RESOLVED.sh

@@ -1122,7 +1122,7 @@ testcase_13_varlink_subscribe_dns_configuration() {
     {
         echo "[Resolve]"
         echo "DNS="
-    } > /run/systemd/resolved.conf.d/90-global-dns.conf
+    } >/run/systemd/resolved.conf.d/90-global-dns.conf
     systemctl reload systemd-resolved.service
     resolvectl dns dns0 ""
     resolvectl domain dns0 ""
@@ -1140,7 +1140,7 @@ testcase_13_varlink_subscribe_dns_configuration() {
         echo "[Resolve]"
         echo "DNS=8.8.8.8"
         echo "Domains=lan"
-    } > /run/systemd/resolved.conf.d/90-global-dns.conf
+    } >/run/systemd/resolved.conf.d/90-global-dns.conf
     systemctl reload systemd-resolved.service
 
     # Update a link configuration.
@@ -1362,7 +1362,7 @@ testcase_15_wait_online_dns() {
         echo "[Resolve]"
         echo "DNS="
         echo "FallbackDNS="
-    } > "$override"
+    } >"$override"
     systemctl reload systemd-resolved.service
     resolvectl dns dns0 ""
     resolvectl domain dns0 ""
@@ -1382,7 +1382,7 @@ testcase_15_wait_online_dns() {
     {
         echo "[Resolve]"
         echo "DNS=10.0.0.1"
-    } > "$override"
+    } >"$override"
     systemctl restart systemd-resolved.service
 
     # Wait for the monitor to exit gracefully.
@@ -1390,10 +1390,10 @@ testcase_15_wait_online_dns() {
     journalctl --sync
 
     # Check that a disconnect happened, and was handled.
-    journalctl -b -u "$unit" --grep="DNS configuration monitor disconnected, reconnecting..." > /dev/null
+    journalctl -b -u "$unit" --grep="DNS configuration monitor disconnected, reconnecting..." >/dev/null
 
     # Check that dns0 was found to be online.
-    journalctl -b -u "$unit" --grep="dns0: link is configured by networkd and online." > /dev/null
+    journalctl -b -u "$unit" --grep="dns0: link is configured by networkd and online." >/dev/null
 }
 
 testcase_delegate() {