We have already discussed the most common options used with du - a tool to check/calculate file space usage. In its most basic form, du tells you the size of all the files in a given directory. Using -s option it sums up the total size of a directory, but what if we don't want to include a set of files while calculating the utilized space. Using the --exclude and --exclude-from option, we can easily mention the files to be excluded.
Lets say we want to exclude all the *.png files while calculating the file space usage.