Restore a Broken Wireless Connection with a Simple Bash Script

Productivity Sauce
Linking a Linux server to the network via a Wi-Fi connection is not the most reliable option, but in some situations it is the most convenient one. So if you choose to use the Wi-Fi connection, it's prudent to have a tool that monitors the connection and restarts the Wi-Fi interface if the connection is broken. And the following simple Bash shell script can do just that.
#!/bin/sh ping -c5 192.168.1.1 > /dev/null if [ $? -ne 0 ]; then sudo ifdown --force wlan0 sudo ifup wlan0 fi
The script pings the router on the local network (replace 192.168.1.1 with the actual IP address of the router), and restarts the wireless network interface if the ping fails. To make sure that the script handles the correct interface, run the ifconfig command and replace the wlan0 string in the script with the correct interface name. Save the script in the home directory under the wlan-reset.sh name and make it executable using the chmod +x wlan-reset.sh command. To run the script at regular intervals, run the crontab -e command and add the following cron job:
@hourly /home/pi/wlan-reset.sh
This job will run the script every hour, but you can adjust it to whatever interval you want.
comments powered by DisqusIssue 269/2023
Buy this issue as a PDF
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Find SysAdmin Jobs
News
-
Kubuntu Focus Announces XE Gen 2 Linux Laptop
Another Kubuntu-based laptop has arrived to be your next ultra-portable powerhouse with a Linux heart.
-
MNT Seeks Financial Backing for New Seven-Inch Linux Laptop
MNT Pocket Reform is a tiny laptop that is modular, upgradable, recyclable, reusable, and ships with Debian Linux.
-
Ubuntu Flatpak Remix Adds Flatpak Support Preinstalled
If you're looking for a version of Ubuntu that includes Flatpak support out of the box, there's one clear option.
-
Gnome 44 Release Candidate Now Available
The Gnome 44 release candidate has officially arrived and adds a few changes into the mix.
-
Flathub Vying to Become the Standard Linux App Store
If the Flathub team has any say in the matter, their product will become the default tool for installing Linux apps in 2023.
-
Debian 12 to Ship with KDE Plasma 5.27
The Debian development team has shifted to the latest version of KDE for their testing branch.
-
Planet Computers Launches ARM-based Linux Desktop PCs
The firm that originally released a line of mobile keyboards has taken a different direction and has developed a new line of out-of-the-box mini Linux desktop computers.
-
Ubuntu No Longer Shipping with Flatpak
In a move that probably won’t come as a shock to many, Ubuntu and all of its official spins will no longer ship with Flatpak installed.
-
openSUSE Leap 15.5 Beta Now Available
The final version of the Leap 15 series of openSUSE is available for beta testing and offers only new software versions.
-
Linux Kernel 6.2 Released with New Hardware Support
Find out what's new in the most recent release from Linus Torvalds and the Linux kernel team.