GitHeld · July 7, 2024 19:40 · Feb 27, 2024 · Feb 27, 2024 · Feb 27, 2024 · Jul 30, 2018
diff --git a/RPi3-Auto-WiFi.md b/RPi3-Auto-WiFi.md
@@ -28,11 +28,10 @@ fi
 echo 'WiFi check finished'
 ```
 
-Or you can also use
+Or you can also use the following command to download the script.
 ```bash
 sudo wget https://raw.github.com/carry0987/Raspberry-Pi-Repo/master/Auto-WiFi-Reconnect/wifi-reconnect.sh
 ```
-to download the script.
 
 #### Note:
 This script uses `/sbin/ip` command for disabling and enabling the wlan interface. This is a more modern approach compared to using `ifconfig` and is the preferred way in newer Linux distributions.

diff --git a/RPi3-Auto-WiFi.md b/RPi3-Auto-WiFi.md
@@ -5,7 +5,7 @@ Before you start, make sure `ip` command is available on your system. In modern
 ## Create script file
 Use ```touch /home/pi/wifi-reconnect.sh``` to create a shell script file,
 with the following content:
-```
+```bash
 #!/bin/bash
 
 SSID=$(/sbin/iwgetid --raw)
@@ -29,7 +29,9 @@ echo 'WiFi check finished'
 ```
 
 Or you can also use
-```sudo wget https://raw.github.com/carry0987/Raspberry-Pi-Repo/master/Auto-WiFi-Reconnect/wifi-reconnect.sh```
+```bash
+sudo wget https://raw.github.com/carry0987/Raspberry-Pi-Repo/master/Auto-WiFi-Reconnect/wifi-reconnect.sh
+```
 to download the script.
 
 #### Note:

diff --git a/RPi3-Auto-WiFi.md b/RPi3-Auto-WiFi.md
@@ -1,27 +1,39 @@
-# Auto reconnect to wifi when lost connect
+# Auto reconnect to wifi when lost connection
+
+Before you start, make sure `ip` command is available on your system. In modern Linux distributions, `ip` replaces older `ifconfig` command. If `net-tools` package (that includes `ifconfig`) is not installed and you prefer using it, you can install it via `sudo apt-get install net-tools`.
 
 ## Create script file
-Use ```touch /home/pi/wifi-reconnect.sh``` to create shell script file,
-with following content:
+Use ```touch /home/pi/wifi-reconnect.sh``` to create a shell script file,
+with the following content:
 ```
-#!/bin/bash 
- 
-SSID=$(/sbin/iwgetid --raw) 
+#!/bin/bash
 
-if [ -z "$SSID" ] 
-then 
-    echo "`date -Is` WiFi interface is down, trying to reconnect" >> /home/pi/wifi-log.txt
-    sudo ifconfig wlan0 down
-    sleep 30
-    sudo ifconfig wlan0 up 
-fi 
+SSID=$(/sbin/iwgetid --raw)
 
-echo "WiFi check finished"
+if [ -z "$SSID" ]; then
+    echo "`date -Is` WiFi interface is down, trying to reconnect" >> /home/pi/wifi-log.txt
+    if command -v /sbin/ip &> /dev/null; then
+        /sbin/ip link set wlan0 down
+        sleep 10
+        /sbin/ip link set wlan0 up
+    elif command -v sudo ifconfig &> /dev/null; then
+        sudo ifconfig wlan0 down
+        sleep 10
+        sudo ifconfig wlan0 up
+    else
+        echo "`date -Is` Failed to reconnect: neither /sbin/ip nor ifconfig commands are available" >> /home/pi/wifi-log.txt
+    fi
+fi
+
+echo 'WiFi check finished'
 ```
 
 Or you can also use
 ```sudo wget https://raw.github.com/carry0987/Raspberry-Pi-Repo/master/Auto-WiFi-Reconnect/wifi-reconnect.sh```
-to download the script
+to download the script.
+
+#### Note:
+This script uses `/sbin/ip` command for disabling and enabling the wlan interface. This is a more modern approach compared to using `ifconfig` and is the preferred way in newer Linux distributions.
 
 ## Make new file executable
 ```sudo chmod +x /home/pi/wifi-reconnect.sh```
@@ -32,17 +44,17 @@ to download the script
 ## Edit crontab
 Use ```sudo vim /etc/crontab``` to edit **crontab**
 
-By putting following content at end of file:
+By putting the following content at the end of the file:
 
 ```* * * * * root /home/pi/wifi-reconnect.sh```
 
 Test it by disconnecting from WiFi:
 
-```sudo ifconfig wlan0 down```
+```/sbin/ip link set wlan0 down```
 
-Script should reestablish connection within 1 minute.
+The script should reestablish the connection within 1 minute.
 
 ## Check log file
-After the RPi reestablish connection, reconnect RPi and check log file:<br>
+After the RPi reestablishes the connection, reconnect to the RPi and check the log file:<br>
 ```cat /home/pi/wifi-log.txt```
 ![](https://i.imgur.com/hGcfdLm.jpg)
diff --git a/RPi3-Auto-WiFi.md b/RPi3-Auto-WiFi.md
@@ -45,4 +45,4 @@ Script should reestablish connection within 1 minute.
 ## Check log file
 After the RPi reestablish connection, reconnect RPi and check log file:<br>
 ```cat /home/pi/wifi-log.txt```
-![](https://i.imgur.com/uCzUsfG.png)
+![](https://i.imgur.com/hGcfdLm.jpg)
diff --git a/RPi3-Auto-WiFi.md b/RPi3-Auto-WiFi.md
@@ -19,6 +19,10 @@ fi
 echo "WiFi check finished"
 ```
 
+Or you can also use
+```sudo wget https://raw.github.com/carry0987/Raspberry-Pi-Repo/master/Auto-WiFi-Reconnect/wifi-reconnect.sh```
+to download the script
+
 ## Make new file executable
 ```sudo chmod +x /home/pi/wifi-reconnect.sh```
 

diff --git a/RPi3-Auto-WiFi.md b/RPi3-Auto-WiFi.md
@@ -20,7 +20,7 @@ echo "WiFi check finished"
 ```
 
 ## Make new file executable
-```chmod +x /home/pi/wifi-reconnect.sh```
+```sudo chmod +x /home/pi/wifi-reconnect.sh```
 
 ## Install cron
 ```sudo apt-get install cron```

diff --git a/RPi3-auto-wifi.md → RPi3-Auto-WiFi.md b/RPi3-auto-wifi.md → RPi3-Auto-WiFi.md
diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -11,7 +11,9 @@ SSID=$(/sbin/iwgetid --raw)
 if [ -z "$SSID" ] 
 then 
     echo "`date -Is` WiFi interface is down, trying to reconnect" >> /home/pi/wifi-log.txt
-    systemctl restart wireless 
+    sudo ifconfig wlan0 down
+    sleep 30
+    sudo ifconfig wlan0 up 
 fi 
 
 echo "WiFi check finished"

diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -37,6 +37,6 @@ Test it by disconnecting from WiFi:
 Script should reestablish connection within 1 minute.
 
 ## Check log file
-After the RPi reestablish connection, reconnect RPi and check log file:
-/r```cat /home/pi/wifi-log.txt```
+After the RPi reestablish connection, reconnect RPi and check log file:<br>
+```cat /home/pi/wifi-log.txt```
 ![](https://i.imgur.com/uCzUsfG.png)
diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -38,5 +38,5 @@ Script should reestablish connection within 1 minute.
 
 ## Check log file
 After the RPi reestablish connection, reconnect RPi and check log file:
-    ```cat /home/pi/wifi-log.txt```
+/r```cat /home/pi/wifi-log.txt```
 ![](https://i.imgur.com/uCzUsfG.png)
diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -38,6 +38,5 @@ Script should reestablish connection within 1 minute.
 
 ## Check log file
 After the RPi reestablish connection, reconnect RPi and check log file:
-
-```cat /home/pi/wifi-log.txt```
+    ```cat /home/pi/wifi-log.txt```
 ![](https://i.imgur.com/uCzUsfG.png)
diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -38,5 +38,6 @@ Script should reestablish connection within 1 minute.
 
 ## Check log file
 After the RPi reestablish connection, reconnect RPi and check log file:
+
 ```cat /home/pi/wifi-log.txt```
 ![](https://i.imgur.com/uCzUsfG.png)
diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -24,11 +24,16 @@ echo "WiFi check finished"
 ```sudo apt-get install cron```
 
 ## Edit crontab
-```sudo vim /etc/crontab```
-by putting following content at end of file:
+Use ```sudo vim /etc/crontab``` to edit **crontab**
+
+By putting following content at end of file:
+
 ```* * * * * root /home/pi/wifi-reconnect.sh```
+
 Test it by disconnecting from WiFi:
+
 ```sudo ifconfig wlan0 down```
+
 Script should reestablish connection within 1 minute.
 
 ## Check log file

diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -1,7 +1,7 @@
 # Auto reconnect to wifi when lost connect
 
 ## Create script file
-Use```touch /home/pi/wifi-reconnect.sh```to create shell script file,
+Use ```touch /home/pi/wifi-reconnect.sh``` to create shell script file,
 with following content:
 ```
 #!/bin/bash 

diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -1,8 +1,7 @@
 # Auto reconnect to wifi when lost connect
 
 ## Create script file
-Shell script:
-```touch /home/pi/wifi-reconnect.sh```
+Use```touch /home/pi/wifi-reconnect.sh```to create shell script file,
 with following content:
 ```
 #!/bin/bash 

diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -1,33 +1,38 @@
 # Auto reconnect to wifi when lost connect
 
-## 1. Python Script
-Named **autowifi.py** and then put it to **/home/pi** folder
+## Create script file
+Shell script:
+```touch /home/pi/wifi-reconnect.sh```
+with following content:
 ```
-#!/usr/bin/python
-import os, time
+#!/bin/bash 
+ 
+SSID=$(/sbin/iwgetid --raw) 
 
-while True:
-    if '192' not in os.popen('sudo wpa_cli status').read():
-        print '\n****** wifi is down, restart... ******\n'
-        os.system('sudo ifup wlan0')
-    time.sleep(300) #5 minutes
-```
+if [ -z "$SSID" ] 
+then 
+    echo "`date -Is` WiFi interface is down, trying to reconnect" >> /home/pi/wifi-log.txt
+    systemctl restart wireless 
+fi 
 
-## 2. Shell Script
-Named **autowifi.sh** and then put it to **/home/pi** folder
-```
-#!/bin/sh
-python /home/pi/autowifi.py &
+echo "WiFi check finished"
 ```
 
-## 3. Set Autorun
-```sudo cp -f /home/pi/autowifi.sh /etc/init.d/```
-
-```sudo chmod +x /etc/init.d/autowifi.sh```
+## Make new file executable
+```chmod +x /home/pi/wifi-reconnect.sh```
 
-```sudo chown root:root /etc/init.d/autowifi.sh```
+## Install cron
+```sudo apt-get install cron```
 
-```sudo update-rc.d autowifi.sh defaults```
+## Edit crontab
+```sudo vim /etc/crontab```
+by putting following content at end of file:
+```* * * * * root /home/pi/wifi-reconnect.sh```
+Test it by disconnecting from WiFi:
+```sudo ifconfig wlan0 down```
+Script should reestablish connection within 1 minute.
 
-## 4. Demo Screenshot
-![](https://i.imgur.com/cykJowB.png)
+## Check log file
+After the RPi reestablish connection, reconnect RPi and check log file:
+```cat /home/pi/wifi-log.txt```
+![](https://i.imgur.com/uCzUsfG.png)
diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -30,4 +30,4 @@ python /home/pi/autowifi.py &
 ```sudo update-rc.d autowifi.sh defaults```
 
 ## 4. Demo Screenshot
-![](https://i.imgur.com/NoVaQcY.png)
+![](https://i.imgur.com/cykJowB.png)
diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -22,8 +22,11 @@ python /home/pi/autowifi.py &
 
 ## 3. Set Autorun
 ```sudo cp -f /home/pi/autowifi.sh /etc/init.d/```
+
 ```sudo chmod +x /etc/init.d/autowifi.sh```
+
 ```sudo chown root:root /etc/init.d/autowifi.sh```
+
 ```sudo update-rc.d autowifi.sh defaults```
 
 ## 4. Demo Screenshot

diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -27,4 +27,4 @@ python /home/pi/autowifi.py &
 ```sudo update-rc.d autowifi.sh defaults```
 
 ## 4. Demo Screenshot
-[](https://i.imgur.com/NoVaQcY.png)
+![](https://i.imgur.com/NoVaQcY.png)
diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -27,4 +27,4 @@ python /home/pi/autowifi.py &
 ```sudo update-rc.d autowifi.sh defaults```
 
 ## 4. Demo Screenshot
-[Imgur](https://i.imgur.com/NoVaQcY.png)
+[](https://i.imgur.com/NoVaQcY.png)
diff --git a/RPi3-auto-wifi.md b/RPi3-auto-wifi.md
@@ -0,0 +1,30 @@
+# Auto reconnect to wifi when lost connect
+
+## 1. Python Script
+Named **autowifi.py** and then put it to **/home/pi** folder
+```
+#!/usr/bin/python
+import os, time
+
+while True:
+    if '192' not in os.popen('sudo wpa_cli status').read():
+        print '\n****** wifi is down, restart... ******\n'
+        os.system('sudo ifup wlan0')
+    time.sleep(300) #5 minutes
+```
+
+## 2. Shell Script
+Named **autowifi.sh** and then put it to **/home/pi** folder
+```
+#!/bin/sh
+python /home/pi/autowifi.py &
+```
+
+## 3. Set Autorun
+```sudo cp -f /home/pi/autowifi.sh /etc/init.d/```
+```sudo chmod +x /etc/init.d/autowifi.sh```
+```sudo chown root:root /etc/init.d/autowifi.sh```
+```sudo update-rc.d autowifi.sh defaults```
+
+## 4. Demo Screenshot
+[Imgur](https://i.imgur.com/NoVaQcY.png)
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