On Sep 11, 2012 10:10 PM, "Gary Kline" <kl...@thought.org> wrote:
>
> On Tue, Sep 11, 2012 at 09:18:13PM -0400, kpn...@pobox.com wrote:
> > On Tue, Sep 11, 2012 at 05:24:08PM -0700, Gary Kline wrote:
> > > On Wed, Sep 12, 2012 at 01:14:43AM +0200, Polytropon wrote:
> > > > But I also tried cksum directly with a directory
> > > > like
> > > >
> > > >   % cksum <directory>
> > > >
> > > > and could obtain a checksum - so it _seems_ to work.
> > > > After alteration of one file within the hierarchy a
> > > > different result was printed.
> >
> > >     I think I tried something like your second example last night.
> > >     I think I did
> > >
> > >     % cksum foodir/*
> > >
> > >     and had to compare each file from another file I was copying from.
> > >     it was tiresome to check each of dozens of files tho. I was here
at
> > >     desk for something obscene -- over 12 hrs. getting my new
[slightly
> > >     used:)] computer back to normal.
> > >
> > >     if there isn't anything that can compare entire dirs, it looks
like
> > >     it's time to hack a small program.  tx, polyt.
> >
> > Unix was originally created to do text manipulation. No need for a new
> > program when you can do it from the command line.
> >
> > cd dir1 ; cksum * | sort > /tmp/dir1-cksum
> > cd dir2 ; cksum * | sort > /tmp/dir2-cksum
> >
> > diff /tmp/dir?-cksum
> >
> > Don't forget to remove temporary files when you are done.
> >
> > Other useful commands:
> > cut
> > paste
> >
> > You can use awk to pull out and rearrange columns:
> > cksum * | awk '{ print $3, $1, $2; }' | sort
> >
> > This gives you a little easier diff in case you do have changes.
> >
> > Friendly tip: if you did comparisons by hand for 12 hours then you
> > may have missed something.
>
>
>         no, it was several other tasks that I had t  o do very carefully
>         by hand.  I was going to write an awk script.  I figured there
>         were others ways.
>
>         my desktop is a flavor of linux that i don't  know.  it seems to
be
>         lacking in many common unix binaries; md5 is one that I spent
>         an hour checking.  zero.
>
>         your first way works very well and will serve.   many thanks.
>         now I can listen to:
>
>         /Lectures on the Critique of Pure Reason
>
>         which is now safely in my home directory in several mp3 files.
>
> >
> > It's a real shame Unix doesn't have a really good tool for comparing
> > two directory trees. You can use 'diff -r' (even on binaries), but that
> > fails if you have devices, named pipes, or named sockets in the
> > filesystem. And diff or cksum don't tell you if symlinks are different.
> > Plus you may care about file ownership, and that's where the stat
> > command comes in handy.
>
>
>         right.  these are things you only discover the hard way.
> >
> > Not that I'm volunteering, mind you. I ended up instead writing a
> > Python script to do copies of filesystems off of old machines I'm
> > putting to pasture. It's amazing how badly old versions of dump and
> > tar behave.
>
>
>         REmember CP/M and MP/M?  I started out with a dual 8085/80888 box
>         with MP/Mand wrote notes and letters that were stored on 8"
>         twin floppies.  circa mid-1980's I transferred a boatload of
floppies
>         onto my 386 with SVR2 with uucp and others C programs on the 8088
box.
>         it took forever and things keep faulting, but I got it done.
>         eventually.
>
> >

oh yeah, I remember the Kaypro Ā«portableĀ» which was as big as a sampsonite,
and despite being built like a tank probably couldn't handle a wrangling by
a gorilla.

Waitman Gobble
San Jose California



 --
> > Kevin P. Neal                                http://www.pobox.com/~kpn/
> >
> >    "I like being on The Daily Show." - Kermit the Frog, Feb 13 2001
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