diff --git a/scripts/ceph/start.sh b/scripts/ceph/start.sh
index b4de69142..f3bb757c6 100755
--- a/scripts/ceph/start.sh
+++ b/scripts/ceph/start.sh
@@ -69,12 +69,14 @@ mnt_pt=${mnt_dir}/osd-device-0-data
 mkdir -p ${mnt_pt}
 mkfs.xfs -f /dev/disk/by-partlabel/osd-device-0-data
 mount /dev/disk/by-partlabel/osd-device-0-data ${mnt_pt}
-echo -e "\tosd data = ${mnt_pt}" >> "$ceph_conf"
-echo -e "\tosd journal = /dev/disk/by-partlabel/osd-device-0-journal" >> "$ceph_conf"
+cat << EOL >> $ceph_conf
+osd data = ${mnt_pt}
+osd journal = /dev/disk/by-partlabel/osd-device-0-journal
 
 # add mon address
-echo -e "\t[mon.a]" >> "$ceph_conf"
-echo -e "\tmon addr = ${mon_ip}:12046" >> "$ceph_conf"
+[mon.a]
+mon addr = ${mon_ip}:12046
+EOL
 
 # create mon
 rm -rf "${mon_dir:?}/"*
diff --git a/scripts/check_format.sh b/scripts/check_format.sh
index adb5153af..e056ae8d7 100755
--- a/scripts/check_format.sh
+++ b/scripts/check_format.sh
@@ -242,8 +242,7 @@ if hash shellcheck 2>/dev/null; then
 	# This SHCK_EXCLUDE list is out "to do" and we work to fix all of this errors.
 	SHCK_EXCLUDE="SC1083,SC2002,\
 SC2010,SC2012,SC2016,SC2034,SC2045,SC2046,SC2068,SC2086,SC2089,SC2090,\
-SC2097,SC2098,SC2119,SC2120,SC2128,\
-SC2129"
+SC2097,SC2098,SC2119,SC2120,SC2128"
 	# SPDK fails some error checks which have been deprecated in later versions of shellcheck.
 	# We will not try to fix these error checks, but instead just leave the error types here
 	# so that we can still run with older versions of shellcheck.
diff --git a/test/bdev/bdev_raid.sh b/test/bdev/bdev_raid.sh
index a5f0d346d..fd6ae5aa6 100755
--- a/test/bdev/bdev_raid.sh
+++ b/test/bdev/bdev_raid.sh
@@ -62,9 +62,11 @@ function on_error_exit() {
 function configure_raid_bdev() {
 	rm -rf $testdir/rpcs.txt
 
-	echo bdev_malloc_create 32 512 -b Base_1 >> $testdir/rpcs.txt
-	echo bdev_malloc_create 32 512 -b Base_2 >> $testdir/rpcs.txt
-	echo bdev_raid_create -z 64 -r 0 -b \"Base_1 Base_2\" -n raid0 >> $testdir/rpcs.txt
+	cat <<- EOL >> $testdir/rpcs.txt
+	bdev_malloc_create 32 512 -b Base_1
+	bdev_malloc_create 32 512 -b Base_2
+	bdev_raid_create -z 64 -r 0 -b \"Base_1 Base_2\" -n raid0
+	EOL
 	$rpc_py < $testdir/rpcs.txt
 
 	rm -rf $testdir/rpcs.txt
diff --git a/test/blobfs/rocksdb/rocksdb.sh b/test/blobfs/rocksdb/rocksdb.sh
index 0ce1f65cd..8e102e643 100755
--- a/test/blobfs/rocksdb/rocksdb.sh
+++ b/test/blobfs/rocksdb/rocksdb.sh
@@ -10,9 +10,11 @@ run_step() {
 		exit 1
 	fi
 
-	echo "--spdk=$ROCKSDB_CONF" >> "$1"_flags.txt
-	echo "--spdk_bdev=Nvme0n1" >> "$1"_flags.txt
-	echo "--spdk_cache_size=$CACHE_SIZE" >> "$1"_flags.txt
+	cat <<- EOL >> "$1"_flags.txt
+	--spdk=$ROCKSDB_CONF
+	--spdk_bdev=Nvme0n1
+	--spdk_cache_size=$CACHE_SIZE
+	EOL
 
 	echo -n Start $1 test phase...
 	/usr/bin/time taskset 0xFF $DB_BENCH --flagfile="$1"_flags.txt &> "$1"_db_bench.txt
@@ -77,44 +79,54 @@ fi
 
 cd $RESULTS_DIR
 cp $testdir/common_flags.txt insert_flags.txt
-echo "--benchmarks=fillseq" >> insert_flags.txt
-echo "--threads=1" >> insert_flags.txt
-echo "--disable_wal=1" >> insert_flags.txt
-echo "--use_existing_db=0" >> insert_flags.txt
-echo "--num=$NUM_KEYS" >> insert_flags.txt
+cat << EOL >> insert_flags.txt
+--benchmarks=fillseq
+--threads=1
+--disable_wal=1
+--use_existing_db=0
+--num=$NUM_KEYS
+EOL
 
 cp $testdir/common_flags.txt randread_flags.txt
-echo "--benchmarks=readrandom" >> randread_flags.txt
-echo "--threads=16" >> randread_flags.txt
-echo "--duration=$DURATION" >> randread_flags.txt
-echo "--disable_wal=1" >> randread_flags.txt
-echo "--use_existing_db=1" >> randread_flags.txt
-echo "--num=$NUM_KEYS" >> randread_flags.txt
+cat << EOL >> randread_flags.txt
+--benchmarks=readrandom
+--threads=16
+--duration=$DURATION
+--disable_wal=1
+--use_existing_db=1
+--num=$NUM_KEYS
+EOL
 
 cp $testdir/common_flags.txt overwrite_flags.txt
-echo "--benchmarks=overwrite" >> overwrite_flags.txt
-echo "--threads=1" >> overwrite_flags.txt
-echo "--duration=$DURATION" >> overwrite_flags.txt
-echo "--disable_wal=1" >> overwrite_flags.txt
-echo "--use_existing_db=1" >> overwrite_flags.txt
-echo "--num=$NUM_KEYS" >> overwrite_flags.txt
+cat << EOL >> overwrite_flags.txt
+--benchmarks=overwrite
+--threads=1
+--duration=$DURATION
+--disable_wal=1
+--use_existing_db=1
+--num=$NUM_KEYS
+EOL
 
 cp $testdir/common_flags.txt readwrite_flags.txt
-echo "--benchmarks=readwhilewriting" >> readwrite_flags.txt
-echo "--threads=4" >> readwrite_flags.txt
-echo "--duration=$DURATION" >> readwrite_flags.txt
-echo "--disable_wal=1" >> readwrite_flags.txt
-echo "--use_existing_db=1" >> readwrite_flags.txt
-echo "--num=$NUM_KEYS" >> readwrite_flags.txt
+cat << EOL >> readwrite_flags.txt
+--benchmarks=readwhilewriting
+--threads=4
+--duration=$DURATION
+--disable_wal=1
+--use_existing_db=1
+--num=$NUM_KEYS
+EOL
 
 cp $testdir/common_flags.txt writesync_flags.txt
-echo "--benchmarks=overwrite" >> writesync_flags.txt
-echo "--threads=1" >> writesync_flags.txt
-echo "--duration=$DURATION" >> writesync_flags.txt
-echo "--disable_wal=0" >> writesync_flags.txt
-echo "--use_existing_db=1" >> writesync_flags.txt
-echo "--sync=1" >> writesync_flags.txt
-echo "--num=$NUM_KEYS" >> writesync_flags.txt
+cat << EOL >> writesync_flags.txt
+--benchmarks=overwrite
+--threads=1
+--duration=$DURATION
+--disable_wal=0
+--use_existing_db=1
+--sync=1
+--num=$NUM_KEYS
+EOL
 
 timing_enter rocksdb_insert
 run_step insert
diff --git a/test/blobstore/blob_io_wait/blob_io_wait.sh b/test/blobstore/blob_io_wait/blob_io_wait.sh
index cf3f8206a..d6384e6ff 100755
--- a/test/blobstore/blob_io_wait/blob_io_wait.sh
+++ b/test/blobstore/blob_io_wait/blob_io_wait.sh
@@ -29,11 +29,13 @@ $rpc_py bdev_lvol_create -l lvs0 lvol0 32
 killprocess $bdev_svc_pid
 
 # Minimal number of bdev io pool (128) and cache (1)
-echo "[Bdev]" > $testdir/bdevperf.conf
-echo "BdevIoPoolSize 128" >> $testdir/bdevperf.conf
-echo "BdevIoCacheSize 1" >> $testdir/bdevperf.conf
-echo "[AIO]" >> $testdir/bdevperf.conf
-echo "AIO $testdir/aio.bdev aio0 4096" >> $testdir/bdevperf.conf
+cat << EOL > $testdir/bdevperf.conf
+[Bdev]
+BdevIoPoolSize 128
+BdevIoCacheSize 1
+[AIO]
+AIO $testdir/aio.bdev aio0 4096
+EOL
 
 $rootdir/test/bdev/bdevperf/bdevperf -c $testdir/bdevperf.conf -q 128 -o 4096 -w write -t 5 -r /var/tmp/spdk.sock &
 bdev_perf_pid=$!
diff --git a/test/common/autotest_common.sh b/test/common/autotest_common.sh
index 59651178c..442d756b5 100644
--- a/test/common/autotest_common.sh
+++ b/test/common/autotest_common.sh
@@ -84,22 +84,23 @@ export UBSAN_OPTIONS='halt_on_error=1:print_stacktrace=1:abort_on_error=1'
 # and known leaks in external executables or libraries from showing up.
 asan_suppression_file="/var/tmp/asan_suppression_file"
 sudo rm -rf "$asan_suppression_file"
-
+cat << EOL >> "$asan_suppression_file"
 # ASAN has some bugs around thread_local variables.  We have a destructor in place
 # to free the thread contexts, but ASAN complains about the leak before those
 # destructors have a chance to run.  So suppress this one specific leak using
 # LSAN_OPTIONS.
-echo "leak:spdk_fs_alloc_thread_ctx" >> "$asan_suppression_file"
+leak:spdk_fs_alloc_thread_ctx
 
 # Suppress known leaks in fio project
-echo "leak:/usr/src/fio/parse.c" >> "$asan_suppression_file"
-echo "leak:/usr/src/fio/iolog.c" >> "$asan_suppression_file"
-echo "leak:/usr/src/fio/init.c" >> "$asan_suppression_file"
-echo "leak:fio_memalign" >> "$asan_suppression_file"
-echo "leak:spdk_fio_io_u_init" >> "$asan_suppression_file"
+leak:/usr/src/fio/parse.c
+leak:/usr/src/fio/iolog.c
+leak:/usr/src/fio/init.c
+leak:fio_memalign
+leak:spdk_fio_io_u_init
 
 # Suppress leaks in libiscsi
-echo "leak:libiscsi.so" >> "$asan_suppression_file"
+leak:libiscsi.so
+EOL
 
 # Suppress leaks in libfuse3
 echo "leak:libfuse3.so" >> "$asan_suppression_file"
@@ -766,9 +767,11 @@ ramp_time=0
 EOL
 
 	if [ "$workload" == "verify" ]; then
-		echo "verify=sha1" >> $config_file
-		echo "verify_backlog=1024" >> $config_file
-		echo "rw=randwrite" >> $config_file
+		cat <<- EOL >> $config_file
+		verify=sha1
+		verify_backlog=1024
+		rw=randwrite
+		EOL
 
 		# To avoid potential data race issue due to the AIO device
 		# flush mechanism, add the flag to serialize the writes.
diff --git a/test/nvmf/target/shutdown.sh b/test/nvmf/target/shutdown.sh
index 2658517e5..e99101b6e 100755
--- a/test/nvmf/target/shutdown.sh
+++ b/test/nvmf/target/shutdown.sh
@@ -56,10 +56,12 @@ timing_enter create_subsystems
 rm -rf $testdir/rpcs.txt
 for i in $(seq 1 $num_subsystems)
 do
-	echo bdev_malloc_create $MALLOC_BDEV_SIZE $MALLOC_BLOCK_SIZE -b Malloc$i >> $testdir/rpcs.txt
-	echo nvmf_create_subsystem nqn.2016-06.io.spdk:cnode$i -a -s SPDK$i >> $testdir/rpcs.txt
-	echo nvmf_subsystem_add_ns nqn.2016-06.io.spdk:cnode$i Malloc$i >> $testdir/rpcs.txt
-	echo nvmf_subsystem_add_listener nqn.2016-06.io.spdk:cnode$i -t $TEST_TRANSPORT -a $NVMF_FIRST_TARGET_IP -s $NVMF_PORT >> $testdir/rpcs.txt
+	cat <<- EOL >> $testdir/rpcs.txt
+	bdev_malloc_create $MALLOC_BDEV_SIZE $MALLOC_BLOCK_SIZE -b Malloc$i
+	nvmf_create_subsystem nqn.2016-06.io.spdk:cnode$i -a -s SPDK$i
+	nvmf_subsystem_add_ns nqn.2016-06.io.spdk:cnode$i Malloc$i
+	nvmf_subsystem_add_listener nqn.2016-06.io.spdk:cnode$i -t $TEST_TRANSPORT -a $NVMF_FIRST_TARGET_IP -s $NVMF_PORT
+	EOL
 
 	echo "  TransportID \"trtype:$TEST_TRANSPORT adrfam:IPv4 subnqn:nqn.2016-06.io.spdk:cnode$i traddr:$NVMF_FIRST_TARGET_IP trsvcid:$NVMF_PORT hostaddr:$NVMF_FIRST_TARGET_IP\" Nvme$i" >> $testdir/bdevperf.conf
 done
diff --git a/test/vhost/hotplug/scsi_hotremove.sh b/test/vhost/hotplug/scsi_hotremove.sh
index 0af150e6e..c234c4d2e 100644
--- a/test/vhost/hotplug/scsi_hotremove.sh
+++ b/test/vhost/hotplug/scsi_hotremove.sh
@@ -23,9 +23,11 @@ function prepare_fio_cmd_tc1() {
         cp $fio_job $tmp_detach_job
         vm_check_scsi_location $vm_num
         for disk in $SCSI_DISK; do
-            echo "[nvme-host$disk]" >> $tmp_detach_job
-            echo "filename=/dev/$disk" >> $tmp_detach_job
-            echo "size=100%" >> $tmp_detach_job
+		cat <<- EOL >> $tmp_detach_job
+		[nvme-host$disk]
+		filename=/dev/$disk
+		size=100%
+		EOL
         done
         vm_scp "$vm_num" $tmp_detach_job 127.0.0.1:/root/default_integrity_2discs.job
         run_fio+="--client=127.0.0.1,$(vm_fio_socket $vm_num) --remote-config /root/default_integrity_2discs.job "