I know of two graphical diff programs: Meld and KDiff3. I haven't used KDiff3, but Meld works well for me. It seems that both are in the standard package ...
The most commonly used tool for that is Ediff, which offers umpteen entry points that correspond to the various needs: comparison of two files, tree files.
The diff command is a versatile utility that is pre-installed on most Linux distributions. Its primary purpose is to compare the contents of two files and ...
Beyond Compare is the popular choice for data comparison. Compare folders, text files, images, and tables. Review differences efficiently and merge changes ...