Update readme

README.md

@@ -6,32 +6,65 @@ Pman is inspired by [Supervisor](https://github.com/Supervisor/supervisor) in se
 ## Usage
 ### Configuration file
 Pman reads the configuration file (default: /etc/pman.conf) at startup.  
-The configuration file has a section that describes the settings of the daemon and a section that describes the setting of the program to be executed.
-Please see [sample conf file](https://github.com/matsune/pman/blob/master/pman.conf).
+The configuration file has 2 sections; a section that describes the settings of the daemon and a section that describes the setting of the program to be executed.
+Pman has `echo` command that shows default configurations.
+
+```shell
+$ sudo sh -c './bin/pman echo > /etc/pman.conf'
+$ cat /etc/pman.conf
+[pman]
+pidfile=/tmp/pman.pid 	; pman daemon's pidfile
+logfile=/tmp/pman.log 	; pman daemon's logfile
+port=127.0.0.1:50010  	; gRPC server port
+directory=/tmp        	; default is current dir
+
+[program:sample]
+command=/bin/ls               	; program command
+stdout=/tmp/sample_stdout.log 	; program stdout logfile (default: /tmp/${program name}_stdout.log)
+stderr=/tmp/sample_stderr.log 	; program stderr logfile (default: /tmp/${program name}_stderr.log)
+autorestart=true              	; automatically restart if exited unexpectedly
+autostart=true                	; start program on daemon's startup
+```
 
 ### Start server
 ```shell
 $ pman
 # specific conf file path
-$ pman -c pman.conf
+$ pman -c ./pman.conf
 ```
 
 ### Run client
 ```shell
-$ pman <command> [<args>]
+$ pman <command>
 
 command:
-   status <program>      show status
-   status all            show status of all programs
-   start <program>       start program
-   start all             start all programs which is not running
-   stop <program>        stop program
-   stop all              stop all programs which is running
-   restart <program>     stop and start program
-   restart all           restart all programs
-   kill                  kill daemon process
+  status <program>  	show status
+  start <program>   	start program
+  stop <program>    	stop program
+  restart <program> 	stop and start program
+  kill              	kill daemon process
+  echo              	echo default conf
+```
+
+You can use "all" to operate all registered programs.
+```shell
+$ pman stop all
+[sample] STOPPING
+[sample2] STOPPING
+[sample3] STOPPING
+
+$ pman start all
+[sample] RUNNING 	pid: 8978	uptime: 00:00:00
+[sample2] RUNNING 	pid: 8979	uptime: 00:00:00
+[sample3] RUNNING 	pid: 8980	uptime: 00:00:00
+
+$ pman status
+[sample] RUNNING 	pid: 8978	uptime: 00:00:02
+[sample2] RUNNING 	pid: 8979	uptime: 00:00:02
+[sample3] RUNNING 	pid: 8980	uptime: 00:00:02
 ```
 
+
 ## gRPC
 Pman server adopts [gRPC](https://grpc.io) as a protocol for IPC.  
 You can call pman's API from client program written in programming language supporting gRPC.