

A couple I use (concept of not exact), that I haven’t seen in the thread yet:
Using grep as diff:
grep -Fxnvf orig.file copy.file
Using xargs -
xargs reads items from the standard input, delimited by blanks (which can be protected with double or single quotes or a backslash) or newlines, and executes the command (default is /bin/echo) one or more times with any initial-arguments followed by items read from standard input.
EG:
$ find ~/Pictures -name "*.png" -type f -print0 | xargs -0 tar -cvzf images.tar.gz















I did. I have an s22 flip. Not fully “dumb”, it runs android mobile. But so lacking on resources it is basically a dumb phone, with Spotify and maps. Fits my use case fine and much less distractions and constant gamifiyijng. I Miss NFC payments the most and my banking app won’t even run on it, but it does the job of being a communications device just fine.