Snoop is a free and open source search application for Linux. Using Snoop, you can search through file contents in a given folder. It comes with simple and advanced mode, open files directly via text editor, filter search via match case, whole words, regular expressions. It is written in Vala and released under GNU General Public License v3.0. It also provides a Nautilus extension to quickly search from the context menu.
How to Install Snoop on Ubuntu
To install Snoop on your Linux system, first install flatpak and flathub on your system and restart it after the installation.
sudo apt install flatpak
flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
After that open the terminal app and run below Snoop flatpak install command.
flatpak install flathub de.philippun1.Snoop
After the successful installation of Snoop on your system, you can open it using below command.
flatpak run de.philippun1.Snoop
And also uninstall it using below commands.
flatpak uninstall de.philippun1.Snoop
sudo flatpak uninstall de.philippun1.Snoop