Comparing two folder/files in Linux

To compare two folder/files in linux, you can use diff command.

1. Open terminal
2. diff <source_folder_path> <dest_folder_path>
To know more about this command you can do

diff --help

this will return you a full help menu. Important helps are added below.

Usage: diff [OPTION]... FILES
Compare FILES line by line.

 -y, --side-by-side              output in two columns
 -p, --show-c-function           show which C function each change is in
 -r, --recursive                 recursively compare any subdirectories found
 -i, --ignore-case               ignore case differences in file contents
 -E, --ignore-tab-expansion      ignore changes due to tab expansion
 -Z, --ignore-trailing-space     ignore white space at line end
 -b, --ignore-space-change       ignore changes in the amount of white space
 -w, --ignore-all-space          ignore all white space
 -B, --ignore-blank-lines        ignore changes where lines are all blank



There is also a GUI application for diff, named Meld.
You can install Meld using apt

sudo apt install meld