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Re: reverse the order of messages in a mailbox?

1999-10-15 10:59:25
Stan suggested,

R> One could replace the last line with something (untested) like:
R>   ls -1 | egrep '^-' | tee /tmp/$$ | xargs cat && \
R>     touch ./-- && cat /tmp/$$ | xargs rm -f ./-- && rm /tmp/$$

Era asked,

E> If you're in this deep a mess, why not just
E>   ls -1 | sed -n '/^-/s%.*%cat ./& ; rm -f ./&%p' | sh

That calls cat and rm once each for every message in the folder.  The same
can be done without sed and the extra sh:

  ls -1 | \
    while read filename
    do case ./$filename in
       -*) cat ./$filename && rm -f ./$filename ;;
       esac
    done

Stan's suggestion calls cat and rm only once per line of xargs's output.