The BFG is a simpler, faster alternative to git-filter-branch for cleansing bad data out of your Git repository history:

Removing Crazy Big Files
Removing Passwords, Credentials & other Private data
The git-filter-branch command is enormously powerful and can do things that the BFG can't - but the BFG is much better for the tasks above, because:

Faster : 10 - 720x faster
Simpler : The BFG isn't particularily clever, but is focused on making the above tasks easy
Beautiful : If you need to, you can use the beautiful Scala language to customise the BFG. Which has got to be better than Bash scripting at least some of the time.

Timeshift is a GTK3-based, open source, system restore utility which takes incremental snapshots of the system using rsync and hard-links. These snapshots can be restored at a later date to undo all changes that were made to the system after the snapshot was taken. Snapshots can be taken manually or at regular intervals using scheduled jobs.

Map your brainstorming sessions with Freeplane, the 13th in our series on open source tools that will make you more productive in 2019.

Nmon is short for “Nigel’s Monitor”. It’s a systems administrator, tuner, and benchmark all wrapped up in an easy-to-use tool. The utility displays performance information on the CPU, memory, network, disks (mini graphs or numbers), filesystems, NFS, top processes, resources (Linux version & processors) and more.

Krusader is an advanced, twin-panel (commander-style) file manager designed for KDE Plasma. Krusader also runs on other popular Linux desktop environments such as GNOME.