Fix errors in case of multiple mysql installations.

flush_host_cache.sh

@@ -143,7 +143,7 @@ detect_mysql_version () {
 mysqladmin=`realpath $(which mysqladmin) 2>/dev/null`
 if [ -z "$mysqladmin" ]; then
    if [ -x "/usr/local/mysql/bin/mysqladmin" ]; then
-      mysql=/usr/local/mysql/bin/mysqladmin
+      mysqladmin=/usr/local/mysql/bin/mysqladmin
    else
       echo
       echo -e "\t[ Error ]: \"mysqladmin\"  not found !!!"
@@ -237,12 +237,21 @@ while [[ $index_arr -lt ${#mysql_credential_args_arr[@]} ]] ; do
    mysql_credential_args="${_val_arr[1]}"
 
    echononl "   [ ${mysql_version} ]: Flush host cache.."
-   $mysqladmin $mysql_credential_args flush-hosts
+   $mysqladmin $mysql_credential_args flush-hosts 2> $tmp_log_file
    if [[ $? -eq 0 ]]; then
       echo_ok
    else
-      echo_failed
-      error "$(cat $tmp_log_file)"
+      if [[ "$(cat $tmp_log_file)" =~ "unknown variable 'login-path" ]] ; then
+         if [[ -x "/usr/local/mysql/bin/mysqladmin" ]] ; then
+            /usr/local/mysql/bin/mysqladmin $mysql_credential_args flush-hosts
+            if [[ $? -ne 0 ]] ; then
+               echo_failed
+               error "$(cat $tmp_log_file)"
+            else
+               echo_ok
+            fi
+         fi
+      fi
    fi
 
    (( index_arr++ ))