How do I get and format the contents of a bunch of text files (md5sums) in Linux?

I have a bunch of md5 files, which have a hash and a path/filename. I want to output the hash and filename, but not the path.

Example file contents:

d7b7494a0602d91b391848dfaebec7ac  /home/develop/md5sums/file1.md5

Desired output:

d7b7494a0602d91b391848dfaebec7ac file1.md5
dd036a1e1c16b3488309a75f80e5eb92 file2.md5
bf60fb26cbe1f4e9e4001aa485b89ff8 file3.md5

My current attempts from searches so far are:

cat *.md5 | xargs -0 sed -i 's/\/home\/develop\/md5sums\///g'

(Gives an error e.g. for file3.md5: sed: 2: "bf60fb26cbe1f4e9e4001aa ...": extra characters at the end of d command)

cat *.md5 | xargs -I '{}' sed -i 's/\/home\/develop\/md5sums\////g'

(Gives an error e.g. for file3.md5: sed: -I or -i may not be used with stdin)

I can probably figure out how to solve it with a for loop, but ideally I'd like to keep it as a piped one-liner if possible, and I think there should be a way for cat/xargs/sed to work, I just can't figure it out!

The path is hardcoded, so I don't feel the need to use basename, particularly as the md5 file contains more than just the the path/file, which I think makes it more tricky!

Try:

sed 's: .*/: :' *.md5

Output:

d7b7494a0602d91b391848dfaebec7ac file1.md5

Your attempts didn't work, because you used the -i option, which edits the files in-place. But to do that, sed needs to access those files directly. When reading from a piped cat, sed can only see the concatenated contents of the files, it cannot know their location, and therefore can't edit them. That's what the error you got meant. But when we pass the list of files directly to sed, it's able to edit them.

You can use this:

sed -E 's:([0-9a-f]+)[[:space:]]+/(.+/)*([^/]+)$: :g' file.md5

Here we capturing hash, path and last segment of a path and replacing it with hash (\1) and last segment (\3).