Directory comparisons using diff

I’ve started to like the diff command a lot. It can help me do directory comparisons with a variety of options that I totally love. Here are a few samples that I mostly use

Compare directories and list only filenames – ignore content

# -q Report only whether the files differ, not the details of the differences
# -r When comparing directories, recursively compare any subdirectories found
diff -qr /dir1 /dir2

Ignore certain log files during comparison

diff -r /dir1 /dir2 -x *.log -x *_Mod
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