Automatic update of Atom feature is not yet supported for Ubuntu. From their GitHub repository:
Currently only a 64-bit version is available.
Download atom-amd64.deb from the Atom releases page. Run sudo dpkg
–install atom-amd64.deb on the downloaded package. Launch Atom using the installed atom command. The Linux version does not currently
automatically update so you will need to repeat these steps to upgrade
to future releases.
I tried using Webupd8 PPA but it doesn't work for me.
Best Answer
TL;DR If you do not want to use the PPA, you can use a script to download and automatically install via cron.
Create a new file
atom-auto-update
Add the following lines
Save the file and make it executable
Test the script
Create a cronjob for the script
Add this line
e.g.: at 10 am every week
e.g.: at 10 am every day
Explanation
wget -q https://github.com/atom/atom/releases/latest -O /tmp/latest
Download the site with the latest version information
wget -q $(awk -F '[<>]' '/href=".*atom-amd64.deb/ {match($0,"href=\"(.*.deb)\"",a); print "https://github.com/" a[1]} ' /tmp/latest) -O /tmp/atom-amd64.deb
… awk -F '[<>]' '/href=".*atom-amd64.deb/ {match($0,"href=\"(.*.deb)\"",a); print "https://github.com/" a[1]} ' /tmp/latest …
Extract the download link
wget -q $( … ) -O /tmp/atom-amd64.deb
Download the DEB file
dpkg -i /tmp/atom-amd64.deb
Install the DEB file