shellcheck based code cleanup

bin/authorized_key_location_change.sh

@@ -7,14 +7,14 @@ LIST=0;
 SKIP_USERS=();
 while getopts ":gls:" opt; do
 	case "${opt}" in
-		g|go)
+		g) # go
 			# default we test
 			TEST=0;
 			;;
-		s|skip)
+		s) # skip
 			SKIP_USERS+=("${OPTARG}");
 			;;
-		l|list)
+		l) # list
 			LIST=1;
 			;;
 		\?)
@@ -29,7 +29,7 @@ done;
 # detect ssh authorized_keys setting
 SSH_CENTRAL_AUTHORIZED_FILE_FOLDER='';
 SSH_MASTER_AUTHORIZED_FILE='';
-SSH_AUTHORIZED_FILE='';
+# SSH_AUTHORIZED_FILE='';
 for cf in $(grep "^AuthorizedKeysFile" /etc/ssh/sshd_config | grep "%u"); do
 	if [ ! -z $(echo "${cf}" | grep "%u") ]; then
 		SSH_CENTRAL_AUTHORIZED_FILE_FOLDER=$(echo "${cf}" | sed -e 's/%u//');
@@ -66,7 +66,7 @@ if [ ${LIST} -eq 1 ]; then
 fi;
 
 # base folder
-BASE_FOLDER=$(dirname $(readlink -f $0))"/";
+BASE_FOLDER=$(dirname "$(readlink -f "$0")")"/";
 # output printf
 PRINTF_INFO="%-8s [%3s]: %-25s: %s\n";
 # list of user accounts we will never touch