diff --git a/lgsm/functions/alert.sh b/lgsm/functions/alert.sh
index db5fdbc79..d09f9eb93 100644
--- a/lgsm/functions/alert.sh
+++ b/lgsm/functions/alert.sh
@@ -12,7 +12,7 @@ fn_alert_log(){
 	info_config.sh
 	info_messages.sh
 	if [ -f "${alertlog}" ]; then
-		rm "${alertlog}"
+		rm -f "${alertlog:?}"
 	fi
 
 	{
diff --git a/lgsm/functions/command_backup.sh b/lgsm/functions/command_backup.sh
index c1da544e2..46953e1b3 100644
--- a/lgsm/functions/command_backup.sh
+++ b/lgsm/functions/command_backup.sh
@@ -17,12 +17,12 @@ fn_backup_trap(){
 	echo -en "backup ${backupname}.tar.gz..."
 	fn_print_canceled_eol_nl
 	fn_script_log_info "Backup ${backupname}.tar.gz: CANCELED"
-	rm -f "${backupdir}/${backupname}.tar.gz" | tee -a "${lgsmlog}"
+	rm -f "${backupdir:?}/${backupname}.tar.gz" | tee -a "${lgsmlog}"
 	echo -en "backup ${backupname}.tar.gz..."
 	fn_print_removed_eol_nl
 	fn_script_log_info "Backup ${backupname}.tar.gz: REMOVED"
 	# Remove lock file.
-	rm -f "${tmpdir}/.backup.lock"
+	rm -f "${tmpdir:?}/.backup.lock"
 	core_exit.sh
 }
 
@@ -153,7 +153,7 @@ fn_backup_compression(){
 		fn_script_log_pass "Backup created: ${backupname}.tar.gz, total size $(du -sh "${backupdir}/${backupname}.tar.gz" | awk '{print $1}')"
 	fi
 	# Remove lock file
-	rm -f "${tmpdir}/.backup.lock"
+	rm -f "${tmpdir:?}/.backup.lock"
 }
 
 # Clear old backups according to maxbackups and maxbackupdays variables.
diff --git a/lgsm/functions/command_debug.sh b/lgsm/functions/command_debug.sh
index e50965882..d80f5e766 100644
--- a/lgsm/functions/command_debug.sh
+++ b/lgsm/functions/command_debug.sh
@@ -11,7 +11,7 @@ local function_selfname=$(basename "$(readlink -f "${BASH_SOURCE[0]}")")
 # Trap to remove lockfile on quit.
 fn_lockfile_trap(){
 	# Remove lockfile.
-	rm -f "${rootdir}/${lockselfname}"
+	rm -f "${rootdir:?}/${lockselfname}"
 	# resets terminal. Servers can sometimes mess up the terminal on exit.
 	reset
 	fn_print_ok_nl "Closing debug"
diff --git a/lgsm/functions/command_dev_debug.sh b/lgsm/functions/command_dev_debug.sh
index 61f40c808..ba80921c6 100644
--- a/lgsm/functions/command_dev_debug.sh
+++ b/lgsm/functions/command_dev_debug.sh
@@ -9,7 +9,7 @@ local commandaction="Dev-Debug"
 local function_selfname=$(basename "$(readlink -f "${BASH_SOURCE[0]}")")
 
 if [ -f "${rootdir}/.dev-debug" ]; then
-	rm "${rootdir}/.dev-debug"
+	rm "${rootdir:?}/.dev-debug"
 	fn_print_ok_nl "Disabled dev-debug"
 	fn_script_log_info "Disabled dev-debug"
 else
diff --git a/lgsm/functions/command_dev_detect_deps.sh b/lgsm/functions/command_dev_detect_deps.sh
index 83476a7bb..b308c3579 100644
--- a/lgsm/functions/command_dev_detect_deps.sh
+++ b/lgsm/functions/command_dev_detect_deps.sh
@@ -207,21 +207,21 @@ echo -e "Required Librarys"
 echo -e "================================="
 sort "${tmpdir}/.depdetect_readelf" | uniq
 echo -en "\n"
-rm -f "${tmpdir}/.depdetect_centos_line"
-rm -f "${tmpdir}/.depdetect_centos_list"
-rm -f "${tmpdir}/.depdetect_centos_list_uniq"
-
-rm -f "${tmpdir}/.depdetect_debian_line"
-rm -f "${tmpdir}/.depdetect_debian_list"
-rm -f "${tmpdir}/.depdetect_debian_list_uniq"
-
-rm -f "${tmpdir}/.depdetect_ubuntu_line"
-rm -f "${tmpdir}/.depdetect_ubuntu_list"
-rm -f "${tmpdir}/.depdetect_ubuntu_list_uniq"
-
-rm -f "${tmpdir}/.depdetect_readelf"
-rm -f "${tmpdir}/.depdetect_readelf_uniq"
-rm -f "${tmpdir}/.depdetect_unknown"
-rm -f "${tmpdir}/.depdetect_unknown_uniq"
+rm -f "${tmpdir:?}/.depdetect_centos_line"
+rm -f "${tmpdir:?}/.depdetect_centos_list"
+rm -f "${tmpdir:?}/.depdetect_centos_list_uniq"
+
+rm -f "${tmpdir:?}/.depdetect_debian_line"
+rm -f "${tmpdir:?}/.depdetect_debian_list"
+rm -f "${tmpdir:?}/.depdetect_debian_list_uniq"
+
+rm -f "${tmpdir:?}/.depdetect_ubuntu_line"
+rm -f "${tmpdir:?}/.depdetect_ubuntu_list"
+rm -f "${tmpdir:?}/.depdetect_ubuntu_list_uniq"
+
+rm -f "${tmpdir:?}/.depdetect_readelf"
+rm -f "${tmpdir:?}/.depdetect_readelf_uniq"
+rm -f "${tmpdir:?}/.depdetect_unknown"
+rm -f "${tmpdir:?}/.depdetect_unknown_uniq"
 
 core_exit.sh
diff --git a/lgsm/functions/command_dev_detect_glibc.sh b/lgsm/functions/command_dev_detect_glibc.sh
index a8b463e2c..add6a05b6 100644
--- a/lgsm/functions/command_dev_detect_glibc.sh
+++ b/lgsm/functions/command_dev_detect_glibc.sh
@@ -70,8 +70,8 @@ do
 			echo -e ""
 			echo -e "All required GLIBC versions"
 			cat "${tmpdir}/detect_glibc_${glibc_check_var}.tmp" | sort | uniq | sort -r --version-sort
-			rm "${tmpdir}/detect_glibc_${glibc_check_var}.tmp"
-			rm "${tmpdir}/detect_glibc_files_${glibc_check_var}.tmp"
+			rm -f "${tmpdir:?}/detect_glibc_${glibc_check_var}.tmp"
+			rm -f "${tmpdir:?}/detect_glibc_files_${glibc_check_var}.tmp"
 		else
 			fn_print_information_nl "glibc is not required"
 		fi
@@ -84,7 +84,7 @@ echo -e "Final glibc Requirement"
 echo -e "================================="
 if [ -f "${tmpdir}/detect_glibc_highest.tmp" ]; then
 	cat "${tmpdir}/detect_glibc_highest.tmp" | sort | uniq | sort -r --version-sort | head -1
-	rm "${tmpdir}/detect_glibc_highest.tmp"
+	rm -f "${tmpdir:?}/detect_glibc_highest.tmp"
 else
 	fn_print_information_nl "glibc is not required"
 fi
diff --git a/lgsm/functions/command_dev_detect_ldd.sh b/lgsm/functions/command_dev_detect_ldd.sh
index 7f360fe84..f612366bf 100644
--- a/lgsm/functions/command_dev_detect_ldd.sh
+++ b/lgsm/functions/command_dev_detect_ldd.sh
@@ -55,7 +55,7 @@ echo -e "Not Found"
 echo -e "================================="
 cat "${tmpdir}/detect_ldd_not_found.tmp"
 
-rm "${tmpdir}/detect_ldd.tmp"
-rm "${tmpdir}/detect_ldd_not_found.tmp"
+rm -f "${tmpdir:?}/detect_ldd.tmp"
+rm -f "${tmpdir:?}/detect_ldd_not_found.tmp"
 
 core_exit.sh
diff --git a/lgsm/functions/command_fastdl.sh b/lgsm/functions/command_fastdl.sh
index 54ae7fe94..d6600a7af 100644
--- a/lgsm/functions/command_fastdl.sh
+++ b/lgsm/functions/command_fastdl.sh
@@ -67,7 +67,7 @@ fn_clear_old_fastdl(){
 	# Clearing old FastDL.
 	if [ -d "${fastdldir}" ]; then
 		echo -en "clearing existing FastDL directory ${fastdldir}..."
-		rm -R "${fastdldir:?}"
+		rm -fR "${fastdldir:?}"
 		exitcode=$?
 		if [ ${exitcode} -ne 0 ]; then
 			fn_print_fail_eol_nl
@@ -147,7 +147,7 @@ fn_human_readable_file_size(){
 fn_fastdl_preview(){
 	# Remove any file list.
 	if [ -f "${tmpdir}/fastdl_files_to_compress.txt" ]; then
-		rm -f "${tmpdir}/fastdl_files_to_compress.txt"
+		rm -f "${tmpdir:?}/fastdl_files_to_compress.txt"
 	fi
 	echo -e "analysing required files"
 	fn_script_log_info "Analysing required files"
@@ -228,7 +228,7 @@ fn_fastdl_preview(){
 	fi
 	echo -e "about to compress ${totalfiles} files, total size $(fn_human_readable_file_size ${filesizetotal} 0)"
 	fn_script_log_info "${totalfiles} files, total size $(fn_human_readable_file_size ${filesizetotal} 0)"
-	rm "${tmpdir}/fastdl_files_to_compress.txt"
+	rm -f "${tmpdir:?}/fastdl_files_to_compress.txt"
 	if ! fn_prompt_yn "Continue?" Y; then
 		fn_script_log "User exited"
 		core_exit.sh
@@ -276,7 +276,7 @@ fn_fastdl_gmod(){
 		# Clear addons directory in fastdl.
 		echo -en "clearing addons dir from fastdl dir..."
 		fn_sleep_time
-		rm -R "${fastdldir:?}/addons"
+		rm -fR "${fastdldir:?}/addons"
 		exitcode=$?
 		if [ ${exitcode} -ne 0 ]; then
 			fn_print_fail_eol_nl
@@ -379,7 +379,7 @@ fn_fastdl_gmod_dl_enforcer(){
 	# Clear old lua file.
 	if [ -f "${luafastdlfullpath}" ]; then
 		echo -en "removing existing download enforcer: ${luafastdlfile}..."
-		rm "${luafastdlfullpath:?}"
+		rm -f "${luafastdlfullpath:?}"
 		exitcode=$?
 		if [ ${exitcode} -ne 0 ]; then
 			fn_print_fail_eol_nl
diff --git a/lgsm/functions/command_mods_remove.sh b/lgsm/functions/command_mods_remove.sh
index 0c869b88b..cec994fea 100644
--- a/lgsm/functions/command_mods_remove.sh
+++ b/lgsm/functions/command_mods_remove.sh
@@ -68,7 +68,7 @@ while [ "${modfileline}" -le "${modsfilelistsize}" ]; do
 	# If file or directory exists, then remove it.
 
 	if [ -f "${modinstalldir}/${currentfileremove}" ]||[ -d "${modinstalldir}/${currentfileremove}" ]; then
-		rm -rf "${modinstalldir:?}/${currentfileremove}"
+		rm -rf "${modinstalldir:?}/${currentfileremove:?}"
 		((exitcode=$?))
 		if [ ${exitcode} -ne 0 ]; then
 			fn_script_log_fatal "Removing ${modinstalldir}/${currentfileremove}"
@@ -91,7 +91,7 @@ fn_sleep_time
 # Remove file list.
 echo -en "removing ${modcommand}-files.txt..."
 fn_sleep_time
-rm -rf "${modsdir}/${modcommand}-files.txt"
+rm -rf "${modsdir:?}/${modcommand}-files.txt"
 local exitcode=$?
 if [ ${exitcode} -ne 0 ]; then
 	fn_script_log_fatal "Removing ${modsdir}/${modcommand}-files.txt"
diff --git a/lgsm/functions/command_postdetails.sh b/lgsm/functions/command_postdetails.sh
index 7e5d14355..6bbca3d0a 100644
--- a/lgsm/functions/command_postdetails.sh
+++ b/lgsm/functions/command_postdetails.sh
@@ -44,7 +44,7 @@ fn_bad_postdetailslog() {
 
 # Remove any existing postdetails.log file.
 if [ -f "${postdetailslog}" ]; then
-	rm -f "${postdetailslog}"
+	rm -f "${postdetailslog:?}"
 fi
 
 # Rather than a one-pass sed parser, default to using a temporary directory.
diff --git a/lgsm/functions/command_start.sh b/lgsm/functions/command_start.sh
index 80ffdd19a..5d440c60c 100644
--- a/lgsm/functions/command_start.sh
+++ b/lgsm/functions/command_start.sh
@@ -159,7 +159,7 @@ fn_sleep_time
 		fn_print_ok "${servername}"
 		fn_script_log_pass "Started ${servername}"
 	fi
-	rm "${lgsmlogdir}/.${selfname}-tmux-error.tmp"
+	rm "${lgsmlogdir:?}/.${selfname}-tmux-error.tmp"
 	echo -en "\n"
 }
 
diff --git a/lgsm/functions/command_stop.sh b/lgsm/functions/command_stop.sh
index 609425595..471be97a5 100644
--- a/lgsm/functions/command_stop.sh
+++ b/lgsm/functions/command_stop.sh
@@ -242,7 +242,7 @@ info_config.sh
 fn_stop_pre_check
 # Remove lockfile.
 if [ -f "${rootdir}/${lockselfname}" ]; then
-	rm -f "${rootdir}/${lockselfname}"
+	rm -f "${rootdir:?}/${lockselfname}"
 fi
 
 if [ -z "${exitbypass}" ]; then
diff --git a/lgsm/functions/command_update_linuxgsm.sh b/lgsm/functions/command_update_linuxgsm.sh
index c2529f43c..f337ce342 100644
--- a/lgsm/functions/command_update_linuxgsm.sh
+++ b/lgsm/functions/command_update_linuxgsm.sh
@@ -20,7 +20,7 @@ if [ -z "${legacymode}" ]; then
 	if [ "${config_file_diff}" != "" ]; then
 		fn_print_update_eol_nl
 		fn_script_log_info "checking config _default.cfg: UPDATE"
-		rm -f "${configdirdefault}/config-lgsm/${gameservername}/_default.cfg"
+		rm -f "${configdirdefault:?}/config-lgsm/${gameservername}/_default.cfg"
 		fn_fetch_config "lgsm/config-default/config-lgsm/${gameservername}" "_default.cfg" "${configdirdefault}/config-lgsm/${gameservername}" "_default.cfg" "nochmodx" "norun" "noforce" "nomd5"
 		alert="config"
 		alert.sh
@@ -34,7 +34,7 @@ if [ -z "${legacymode}" ]; then
 	if [ "${tmp_script_diff}" != "" ]; then
 		fn_print_update_eol_nl
 		fn_script_log_info "checking linuxgsm.sh: UPDATE"
-		rm -f "${tmpdir}/linuxgsm.sh"
+		rm -f "${tmpdir:?}/linuxgsm.sh"
 		fn_fetch_file_github "" "linuxgsm.sh" "${tmpdir}" "nochmodx" "norun" "noforcedl" "nomd5"
 		# Compare selfname against linuxgsm.sh in the tmp dir. Ignoring server specific vars.
 	else
@@ -87,7 +87,7 @@ if [ -n "${functionsdir}" ]; then
 				fn_print_fail_eol_nl
 				echo -en "    removing unknown function ${functionfile}...\c"
 				fn_script_log_fatal "removing unknown function ${functionfile}"
-				if ! rm -f "${functionfile}"; then
+				if ! rm -f "${functionfile:?}"; then
 					fn_print_fail_eol_nl
 					core_exit.sh
 				else
diff --git a/lgsm/functions/compress_unreal2_maps.sh b/lgsm/functions/compress_unreal2_maps.sh
index 3940e8066..bc7a9ffb8 100644
--- a/lgsm/functions/compress_unreal2_maps.sh
+++ b/lgsm/functions/compress_unreal2_maps.sh
@@ -21,7 +21,7 @@ if ! fn_prompt_yn "Start compression?" Y; then
 	return
 fi
 mkdir -pv "${compressedmapsdir}" > /dev/null 2>&1
-rm -rfv "${serverfiles}/Maps/"*.ut2.uz2
+rm -rfv "${serverfiles:?}/Maps/"*.ut2.uz2
 cd "${systemdir}" || exit
 for map in "${serverfiles}/Maps/"*; do
 	./ucc-bin compress "${map}" --nohomedir
diff --git a/lgsm/functions/compress_ut99_maps.sh b/lgsm/functions/compress_ut99_maps.sh
index 100740acb..9f24ff9a3 100644
--- a/lgsm/functions/compress_ut99_maps.sh
+++ b/lgsm/functions/compress_ut99_maps.sh
@@ -21,7 +21,7 @@ if ! fn_prompt_yn "Start compression?" Y; then
 	return
 fi
 mkdir -pv "${compressedmapsdir}" > /dev/null 2>&1
-rm -rfv "${serverfiles}/Maps/"*.unr.uz
+rm -rfv "${serverfiles:?}/Maps/"*.unr.uz
 cd "${systemdir}" || exit
 for map in "${serverfiles}/Maps/"*; do
 	./ucc-bin compress "${map}" --nohomedir
diff --git a/lgsm/functions/core_dl.sh b/lgsm/functions/core_dl.sh
index 3874c8f24..9a59d5ab8 100644
--- a/lgsm/functions/core_dl.sh
+++ b/lgsm/functions/core_dl.sh
@@ -105,7 +105,7 @@ fn_fetch_trap(){
 	fn_print_canceled_eol_nl
 	fn_script_log_info "Downloading ${local_filename}...CANCELED"
 	fn_sleep_time
-	rm -f "${local_filedir}/${local_filename}"
+	rm -f "${local_filedir:?}/${local_filename}"
 	echo -en "downloading ${local_filename}..."
 	fn_print_removed_eol_nl
 	fn_script_log_info "Downloading ${local_filename}...REMOVED"
diff --git a/lgsm/functions/install_server_files.sh b/lgsm/functions/install_server_files.sh
index f0ce44d7c..2b985569e 100644
--- a/lgsm/functions/install_server_files.sh
+++ b/lgsm/functions/install_server_files.sh
@@ -94,7 +94,7 @@ fn_install_server_files_steamcmd(){
 				find "${serverfiles}" -type d -print0 | grep -Ez '[^/]{30}$' | xargs -0 rm -rf
 			fi
 			if [ "${counter}" -ge "9" ]; then
-				rm -rf "${steamcmddir}"
+				rm -rf "${steamcmddir:?}"
 				check_steamcmd.sh
 			fi
 
diff --git a/lgsm/functions/mods_core.sh b/lgsm/functions/mods_core.sh
index 083b91818..42c19d08d 100644
--- a/lgsm/functions/mods_core.sh
+++ b/lgsm/functions/mods_core.sh
@@ -440,7 +440,7 @@ fn_mods_create_tmp_dir(){
 fn_mods_clear_tmp_dir(){
 	if [ -d "${modstmpdir}" ]; then
 		echo -en "clearing mod download directory ${modstmpdir}..."
-		rm -r "${modstmpdir}"
+		rm -fr "${modstmpdir:?}"
 		exitcode=$?
 		if [ ${exitcode} -ne 0 ]; then
 			fn_print_fail_eol_nl
@@ -454,7 +454,7 @@ fn_mods_clear_tmp_dir(){
 	fi
 	# Clear temp file list as well.
 	if [ -f "${modsdir}/.removedfiles.tmp" ]; then
-		rm "${modsdir}/.removedfiles.tmp"
+		rm -f "${modsdir:?}/.removedfiles.tmp"
 	fi
 }
 
diff --git a/lgsm/functions/update_steamcmd.sh b/lgsm/functions/update_steamcmd.sh
index c55237c2b..b1f3b99b2 100644
--- a/lgsm/functions/update_steamcmd.sh
+++ b/lgsm/functions/update_steamcmd.sh
@@ -156,7 +156,7 @@ fn_appmanifest_check(){
 		fn_script_log_error "Multiple appmanifest_${appid}.acf files found"
 		fn_print_dots "Removing x${appmanifestfilewc} appmanifest_${appid}.acf files"
 		for appfile in ${appmanifestfile}; do
-			rm "${appfile}"
+			rm -f "${appfile:?}"
 		done
 		appmanifestfilewc1="${appmanifestfilewc}"
 		fn_appmanifest_info
diff --git a/tests/tests_defaultcfg/tests_defaultcfg.sh b/tests/tests_defaultcfg/tests_defaultcfg.sh
index 5e139fb4d..5b9b47f2a 100644
--- a/tests/tests_defaultcfg/tests_defaultcfg.sh
+++ b/tests/tests_defaultcfg/tests_defaultcfg.sh
@@ -16,7 +16,7 @@ while IFS= read -r -d $'\0' line; do
 		echo "${diffoutput}"
 		echo ""
 	fi
-	rm defaultcfgtemp.txt
+	rm -f defaultcfgtemp.txt
 done
 
 echo -e ""
@@ -36,7 +36,7 @@ while IFS= read -r -d $'\0' line; do
 		echo "${diffoutput}"
 		echo ""
 	fi
-	rm defaultcfgtemp.txt
+	rm -f defaultcfgtemp.txt
 done
 
 echo -e ""
@@ -56,5 +56,5 @@ while IFS= read -r -d $'\0' line; do
 		echo "${diffoutput}"
 		echo ""
 	fi
-	rm defaultcfgtemp.txt
+	rm -f defaultcfgtemp.txt
 done
diff --git a/tests/tests_fctrserver.sh b/tests/tests_fctrserver.sh
index 6561c7ff4..14c111d55 100644
--- a/tests/tests_fctrserver.sh
+++ b/tests/tests_fctrserver.sh
@@ -1013,6 +1013,6 @@ requiredstatus="OFFLINE"
 fn_setstatus
 if [ ! -v TRAVIS ]; then
 	fn_print_info "Tidying up directories."
-	rm -rfv "${serverfiles}"
+	rm -rfv "${serverfiles:?}"
 fi
 core_exit.sh
diff --git a/tests/tests_jc2server.sh b/tests/tests_jc2server.sh
index 9478fa638..6887b2d45 100644
--- a/tests/tests_jc2server.sh
+++ b/tests/tests_jc2server.sh
@@ -829,7 +829,7 @@ echo -e "Command: ./jc2server update"
 requiredstatus="OFFLINE"
 fn_setstatus
 fn_print_info_nl "removed appmanifest_${appid}.acf."
-rm --verbose "${serverfiles}/steamapps/appmanifest_${appid}.acf"
+rm --verbose "${serverfiles:?}/steamapps/appmanifest_${appid}.acf"
 (
 	exec 5>"${TRAVIS_BUILD_DIR}/dev-debug.log"
 	BASH_XTRACEFD="5"
@@ -1174,6 +1174,6 @@ requiredstatus="OFFLINE"
 fn_setstatus
 if [ ! -v TRAVIS ]; then
 	fn_print_info "Tidying up directories."
-	rm -rfv "${serverfiles}"
+	rm -rfv "${serverfiles:?}"
 fi
 core_exit.sh
diff --git a/tests/tests_mcserver.sh b/tests/tests_mcserver.sh
index 8224c5e8c..4d6378d97 100644
--- a/tests/tests_mcserver.sh
+++ b/tests/tests_mcserver.sh
@@ -1060,6 +1060,6 @@ requiredstatus="OFFLINE"
 fn_setstatus
 if [ ! -v TRAVIS ]; then
 	fn_print_info "Tidying up directories."
-	rm -rfv "${serverfiles}"
+	rm -rfv "${serverfiles:?}"
 fi
 core_exit.sh
diff --git a/tests/tests_ts3server.sh b/tests/tests_ts3server.sh
index 831b1f207..cd56c456d 100644
--- a/tests/tests_ts3server.sh
+++ b/tests/tests_ts3server.sh
@@ -1013,6 +1013,6 @@ requiredstatus="OFFLINE"
 fn_setstatus
 if [ ! -v TRAVIS ]; then
 	fn_print_info "Tidying up directories."
-	rm -rfv "${serverfiles}"
+	rm -rfv "${serverfiles:?}"
 fi
 core_exit.sh