Unify the warning information and delete the exclamation point

docs/books/learning_rsync/01_rsync_overview.md

@@ -44,7 +44,7 @@ The original `rsync` was maintained by the Australian programmer <font color=red
 ![ Andrew Tridgell ](images/Andrew_Tridgell.jpg)
 ![ Wayne Davison ](images/Wayne_Davison.jpg)
 
-!!! note "Attention!"
+!!! note "note"
 
     **rsync itself is only an incremental backup tool and does not have the function of real-time data synchronization (it needs to be supplemented by other programs). In addition, synchronization is one-way. If you want to realize two-way synchronization, you need to cooperate with other tools.**
 

docs/books/learning_rsync/02_rsync_demo01.md

@@ -64,7 +64,7 @@ Fedora34-->|pull/download|RockyLinux8;
 
 ##  Demonstration based on SSH protocol
 
-!!! tip "Attention!"
+!!! tip "tip"
 
     Here, both Rocky Linux 8 and Fedora 34 use the root user to log in. Fedora 34 is the client and Rocky Linux 8 is the server.
 
@@ -92,7 +92,7 @@ aabbcc
 ```
 The transfer was successful.
 
-!!! tip "Attention"
+!!! tip "tip"
 
     If the server's SSH port is not the default 22, you can specify the port in a similar way---`rsync -avz -e 'ssh -p [port]' `.
 

docs/books/learning_rsync/03_rsync_demo02.md

@@ -33,7 +33,7 @@ Some parameters and values ​​of this file are as follows, [ here ](04_rsync_
 | auth users = li| Enable virtual users and define what a virtual user is called. Need to create it yourself|
 | secrets file = /etc/rsyncd_users.db | Used to specify the location of the virtual user's password file, which must end in .db. The content format of the file is "Username: Password", one per line |
 
-!!! tip "Attention!"
+!!! tip "tip"
 
     The permission of the password file must be <font color=red>600</font>
 

docs/books/learning_rsync/05_rsync_authentication-free_login.md

@@ -59,7 +59,7 @@ Last login: Tue Nov 2 21:42:44 2021 from 192.168.100.5
 [testrsync@Rocky ~]$
 ```
 
-!!! tip "Attention!"
+!!! tip "tip"
 
     The server configuration file **/etc/ssh/sshd_config** should be opened <font color=red>PubkeyAuthentication yes</font>
 
@@ -95,6 +95,6 @@ sent 30 bytes received 193 bytes 148.67 bytes/sec
 total size is 883 speedup is 3.96
 ```
 
-!!! tip "tip!"
+!!! tip "tip"
 
     You can write this variable into **/etc/profile** to make it take effect permanently. The content is: `export RSYNC_PASSWORD=13579`

docs/books/learning_rsync/06_rsync_inotify.md

@@ -121,7 +121,7 @@ Back to the first terminal pts/0, the output information is as follows:
 
 ## Combination of  `inotifywait` and `rsync`
 
-!!! tip "Attention!"
+!!! tip "tip"
 
     We are operating in Rocky Linux 8 server, using SSH protocol for demonstration.
 
@@ -142,12 +142,12 @@ $a | while read directory event file
 [root@Rocky ~]# bash /root/rsync_inotify.sh &
 ```
 
-!!! tip "emphasize again!"
+!!! tip "tip"
 
     When using the SSH protocol for data synchronization transmission, if the SSH service port of the target machine is not 22, you can use a method similar to this——
     `b="/usr/bin/rsync -avz -e 'ssh -p [port-number]' /rsync/* testfedora@192.168.100.5:/home/testfedora/"`
 
-!!! tip "Attention!"
+!!! tip "tip"
 
     If you want to start this script at boot
     `[root@Rocky ~]# echo "bash /root/rsync_inotify.sh &" >> /etc/rc.local`

docs/books/learning_rsync/07_rsync_unison_use.md

@@ -33,7 +33,7 @@ Last login: Wed Nov 3 22:07:18 2021 from 192.168.100.5
 [testrsync@Rocky ~]$
 ```
 
-!!! tip "Attention"
+!!! tip "tip"
 
     The configuration files of the two machines **/etc/ssh/sshd_config** should be opened <font color=red>PubkeyAuthentication yes</font>
 
@@ -132,16 +132,16 @@ done
 [root@fedora ~]# jobs -l
 ```
 
-!!! tip "Attention!"
+!!! tip "tip"
 
     For two-way synchronization, the scripts of both machines must be started, otherwise an error will be reported.
 
-!!! tip "Attention!"
+!!! tip "tip"
 
     If you want to start this script at boot
     `[root@Rocky ~]# echo "bash /root/unison1.sh &" >> /etc/rc.local`
     `[root@Rocky ~]# chmod +x /etc/rc.local`
 
-!!! tip "Attention!"
+!!! tip "tip"
 
     If you want to stop the corresponding process of this script, you can find it in the `htop` command and then **kill**