Date: Sun, 13 Mar 2005 05:33:12 -0500 From: "Fafa Diliha Romanova" <fteg@london.com> To: "Loren M. Lang" <lorenl@alzatex.com> Cc: freebsd-questions@freebsd.org Subject: Re: chmod equivalent to find commands Message-ID: <20050313103312.1A2E84BE6D@ws1-1.us4.outblaze.com>
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I think it's really best that I stick to my find commands.
chmod -R u=3DrwX,go=3DrX . worked really fast but it also made all
my files executable.
Bad idea, asking for such a command.
By the way, umask 022? What is meant by that?
----- Original Message -----
From: "Loren M. Lang" <lorenl@alzatex.com>
To: "Giorgos Keramidas" <keramida@ceid.upatras.gr>
Subject: Re: chmod equivalent to find commands
Date: Sun, 13 Mar 2005 02:15:00 -0800
>=20
> On Sat, Mar 12, 2005 at 09:53:02PM +0200, Giorgos Keramidas wrote:
> > On 2005-03-12 10:30, Eric McCoy <emccoy@haystacks.org> wrote:
> > >Fafa Diliha Romanova wrote:
> > >> hello.
> > >>
> > >> i know there's an equivalent to these two find commands that
> > >> can be summed up in one chmod command:
> > >>
> > >> find . -type d -exec chmod 755 {} \;
> > >> find . -type f -exec chmod 644 {} \;
> >
> > Uhm, why? Even if that were possible, isn't clarity more important that
> > stuffing as many actions as possible in one line?
> >
> > What you list above is similar to the way I use for changing the
> > permissions of files/dirs and it works all the time.
> >
> > There's no reason to try to write one, long, complicated command just
> > for the sake of making it one command instead of two. Otherwise, you
> > may as well do more complex stuff like:
>=20
> Summing it up into one command does not neccessarily mean it's longer or
> more complicated. I use the following command all the time to fix
> permissions similar to what he seems to be doing. Though it's not
> technically equivalent, it's probably all he needs.
>=20
> chmod -R u=3DrwX,go=3DrX .
>=20
> My umask of 022 simplifies the command to the following:
>=20
> chmod -R =3DrwX .
>=20
> >
> > find . | while read line; do
> > mode=3D''
> > [ -d "${line}" ] && mode=3D0755
> > [ -f "${line}" ] && mode=3D0644
> >
> > [ -n "${mode}" ] && echo "chmod ${mode} \"${line}\""
> > done | sh
> >
> > But this is getting quickly very difficult to remember easily and repeat
> > consistently every time you want to do something similar :)
> >
> > >> what would be the best solution here?
> > >
> > > I would do it the same way you do, but with xargs instead:
> > >
> > > find . -type X -print0 | xargs -0 chmod XXX
> >
> > This is an excellent way to do this, IMHO.
> >
> > > If you were feeling crazy and use sh:
> > >
> > > find . | while read path; do \
> > > if [ -d "$path" ]; then chmod 755;
> > > else chmod 644; fi; \
> > > done
> >
> > I guess you meant to write:
> >
> > find . | while read path; do \
> > if [ -d "$path" ]; then chmod 755 "${path}";
> > else chmod 644 "${path}"; fi; \
> > done
> >
> > Otherwise, many chmod failures are the only result.
> >
> > But this has a minor buglet. It will change everything that is not a
> > directory to mode 0644. This mode is ok for files, but it may not be ok
> > (or it may even fail) for other stuff (symbolic links, for instance).
> >
> > - Giorgos
> >
> > _______________________________________________
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> > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
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.org"
>=20
> --
> I sense much NT in you.
> NT leads to Bluescreen.
> Bluescreen leads to downtime.
> Downtime leads to suffering.
> NT is the path to the darkside.
> Powerful Unix is.
>=20
> Public Key: ftp://ftp.tallye.com/pub/lorenl_pubkey.asc
> Fingerprint: CEE1 AAE2 F66C 59B5 34CA C415 6D35 E847 0118 A3D2
>=20
<< 2.dat >>
--=20
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