I use the Ubuntu Linux operating system, and I've been a bit frustated by having to launch AntConc from the command line or by clicking on the .sh file in the Files application. I have now found a way to launch it like other applications. It also means that once you have launched it, you can add it to your favourite applications and the launch icon will remain on your toolbar. The following works for me under Ubuntu 20.04 LTS Desktop edition ($ dollar sign represents the prompt).
Create a new file in a text editor, add the following lines, and save it as /usr/share/applications/AntConc.desktop (you'll probably need to do this as 'superuser'). Replace '{path_to_antconc_folder}' in the lines below with the actual path to your AntConc files are installed, e.g. /opt/AntConc, or /home/user/AntConc.
#!/usr/bin/env xdg-open
[Desktop Entry]
Version=4.1.3
Type=Application
Name=AntConc
Exec={path_to_antconc_folder}/AntConc.sh %U
Path={path_to_antconc_folder}
Icon={path_to_antconc_folder}/app_resources/icons/antlab_blue.icns
Categories=Application;