Date: Mon, 4 Jan 2010 19:16:10 +0100 From: Polytropon <freebsd@edvax.de> To: =?ISO-8859-1?Q?D=E1rio?= "P." <fbsd.questions.list@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Rename pictures in the command-line interface Message-ID: <20100104191610.5054255f.freebsd@edvax.de> In-Reply-To: <1262624558.9656.16.camel@dasp-laptop> References: <1262624558.9656.16.camel@dasp-laptop>
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On Mon, 04 Jan 2010 18:02:38 +0100, D=E1rio "P." <fbsd.questions.list@gmail=
.com> wrote:
> Hello,
>=20
> I have one directory with some pictures that I wanna rename (I use csh,
> don't know if that matters).
>=20
> For exemple, I have:
>=20
> b.jpg
> bs.jpg
> bsd.jpg
>=20
> And I wanna change to:
>=20
> bsd1.jpg
> bsd2.jpg
> bsd3.jpg
>=20
> I really appreciate if someone can help me. :)
I know it's quite ugly and complicatedly written, but maybe
the attached script will help. It "just works", but the more
I look at it, the more I wish I hadn't written it, or just
used sh and its printf %03d mechanism. :-)
Keep in mind that the script follows the csh's sorting
order to resolve *, which usually is lexicographical
order.
For example
97.jpg
98.jpg
99.jpg
100.jpg
will, after issuing
renumber bla jpg
result in
bla_01.jpg =3D 100.jpg
bla_02.jpg =3D 97.jpg
bla_03.jpg =3D 98.jpg
bla_04.jpg =3D 99.jpg
So if you wish to do some file preparation, know that the
powerful Midnight Commander can do this for you (select and
PF6).
Here's the script now. Put it in ~/bin (and add this directory
to your $PATH) as "renumber" (or any name you like), give it +x
permissions and "rehash" to make it available to the C shell.
Then, use "renumber <prefix> <suffix>". It will process ALL
files in the current directory (as I said: ugly as sin).
#!/bin/csh
if ( $1 =3D=3D "" || $2 =3D=3D "" ) then
echo "Usage: renumber <base> <extension>"
echo " Target form: <base>_nn[n].<extension>"
echo " For 1 to 99 files: nn; for more than 99 files: nnn"
exit 1
endif
set n =3D `ls -l | wc | awk '{print $1}'`
set num =3D `expr $n - 1`
echo "${num} files to handle."
set base =3D $1
set extn =3D $2
set n =3D 0
foreach f ( *.${extn} )
set n =3D `expr $n + 1`
if ( ${num} > 99 ) then
if ( ${%n} =3D=3D 1 ) then
mv "${f}" "${base}_00${n}.${extn}"
else if ( ${%n} =3D=3D 2 ) then
mv "${f}" "${base}_0${n}.${extn}"
else
mv "${f}" "${base}_${n}.${extn}"
endif
else
if ( ${%n} =3D=3D 1 ) then
mv "${f}" "${base}_0${n}.${extn}"
else
mv "${f}" "${base}_${n}.${extn}"
endif
endif
end
--=20
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
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