Update comment and README.md file

README.md

@@ -29,32 +29,37 @@ This script :
 Requirements
 ------------
 
-* **On master node :** Slaves must be able to connect with user from `recovery.conf` to database with the same name (or another specify with `-D`) as trust (or via md5 using password specify in `~/.pgpass`).
+* Some CLI tools: `sudo`, `awk`, `sed`, `bc`, `psql` and `pg_lscluster`
 
-* **On standby node :** `PG_USER` must be able to connect localy on the database with the same name (or another specify with `-D`) as trust (or via md5 using password specify in `~/.pgpass`).
+* **On master node:** Slaves must be able to connect with user from `recovery.conf` (or user specify using `-U`) to database with the same name (or another specified with `-D`) as `trust` (or via `md5` using password specified in `~/.pgpass`). This user must have `SUPERUSER` privilege (need to get replication details).
 
-* `sudo` must be install on each nodes.
+* **On standby node:** `PG_USER` must be able to connect localy on the database with the same name `(or another specified with -D)` as `trust` (or via `md5` using password specified in `~/.pgpass`).
 
 Usage
 -----
 
+```
 Usage: check_pg_streaming_replication [-d] [-h] [options]
-        -u pg_user              Specify Postgres user (Default : postgres)
+	-u pg_user		Specify local Postgres user (Default: try to auto-detect or use postgres)
 	-b psql_bin		Specify psql binary path (Default: /usr/bin/psql)
-        -m pg_main              Specify Postgres main directory path
+	-B pg_lsclusters_bin	Specify pg_lsclusters binary path (Default: /usr/bin/pg_lsclusters)
-                                (By default, try to auto-detect it, on your system it :
+	-V pg_version		Specify Postgres version (Default: try to auto-detect or use 9.1)
-                                /var/lib/postgresql/9.6/main)
+	-m pg_main		Specify Postgres main directory path (Default: try to auto-detect or use
+                                /var/lib/postgresql//main)
 	-r recovery_conf	Specify Postgres recovery configuration file path
 				(Default: [PG_MAIN]/recovery.conf)
 	-U pg_master_user	Specify Postgres user to use on master (Default: user from recovery.conf file)
-        -p pg_port              Specify default Postgres master TCP port (Default : 5432)
+	-p pg_port		Specify default Postgres master TCP port (Default: same as local PostgreSQL
-        -D dbname               Specify DB name on Postgres master/slave to connect on (Default : PG_USER)
+	                        port if detected or use 5432)
-        -C 1/0                  Enable or disable check if the current XLOG file of the master host is the same
+	-D dbname		Specify DB name on Postgres master/slave to connect on (Default: PG_USER, must
-                                of the last replay XLOG file (Default : 1)
+	                        match with .pgpass one is used)
+	-C 1/0			Enable or disable check if the current LSN of the master host is the same
+				of the last received LSN (Default: 1)
 	-w replay_warn_delay	Specify the replay warning delay in second (Default: 3)
 	-c replay_crit_delay	Specify the replay critical delay in second (Default: 5)
 	-d			Debug mode
 	-h 			Show this message
+```
 
 Copyright
 ---------

check_pg_streaming_replication

@@ -6,7 +6,7 @@
 #
 # Requirements:
 #
-#     Some CLI tools: awk, sed, bc, psql and pg_lscluster
+#     Some CLI tools: sudo, awk, sed, bc, psql and pg_lscluster
 #
 #     On master node: Slaves must be able to connect with user from recovery.conf
 #                     (or user specify using -U) to database with the same name