DatMan is a free and open source plotting and data manipulation tool for Linux. Using DatMan you can open and plot two column data files. You can save the transformed output data as .txt file. You can also save the plot as vector image format. It is written in Python and released under GNU General Public License v3.0. In this app you can change axis label, length and width of the ticks, thickness of the lines, the linestyle, the fonts and more.
How to Install DatMan on Ubuntu Linux
DatMan is available as a flatpak package file from flathub. First install flatpak and flathub on your system using below link. And restart your system after the flatpak installation.
How to Install flatpak and flathub
Open the terminal application using the ctrl+alt+t keys or via application menu and run the below DatMan flatpak installation command. It will install the latest version of DatMan on your system.
flatpak install flathub se.sjoerd.DatMan
After the installation you can start DatMan using this command.
flatpak run se.sjoerd.DatMan
And uninstall DatMan app using below command.
sudo flatpak uninstall se.sjoerd.DatMan