mark knecht

Hi,
Is there a command line way to rename all files in a directory that
have the extension JPG to the same name but all lower case? (I.e.
FILE.JPG becomes file.jpg or FILE.jpg)

Thanks,
Mark

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patrick marquetecken

You could do a find on JPG and replace with jpg

Patrick

Op 25-sep-04 om 18:45 heeft Mark Knecht het volgende geschreven:


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alex lambert

If you're using bash, then setting up a for loop as:

for a in *.JPG; do mv `basename $a JPG`jpg; done

will do the job. Note the backticks (not apostrophes) around "basename
$a JPG", and the lack of space after it. The backticked command gets
replaced with its output. If you preface the mv command with echo (do
echo mv ...), you'll see a list of the commands that will run (but
they won't BE run - so you can check you got the syntax right). This
will only change the extension, not the rest of the filename.

Alex
x x

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tom wesley

Or just:
rename .JPG .jpg *.JPG
;-) --
Tom Wesley <tom@tomaw.org>

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ciaran mccreesh

On Sat, 25 Sep 2004 09:45:51 -0700 Mark Knecht <markknecht@gmail.com>


| have the extension JPG to the same name but all lower case? (I.e.
| FILE.JPG becomes file.jpg or FILE.jpg)

for a in *.JPG ; do mv "${a}" "${a%.JPG}.jpg" ; done

or

rename .JPG .jpg *.jpg

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Mail : ciaranm at gentoo.org
Web : http://dev.gentoo.org/~ciaranm


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nick smith

im not saying try this but was wondering what would mv *.JPG *.jpg do?

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ciaran mccreesh

On Sat, 25 Sep 2004 13:47:13 +0000 Nick Smith <nick@computernick.com>

It will either overwrite a load of files or give you an error saying
that the last argument must be a directory.

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Web : http://dev.gentoo.org/~ciaranm


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joost van surksum

Hello Mark,

Lowering the case of the extension works as follows (piece of shell script):

for i in *.JPG
do
mv $i `basename $i .JPG`.jpg
done

Regards,
Joost

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andres moore

emerge mmv

mmv: move/copy/append/link multiple files by wildcard patterns.


Andres


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alexander skwar

Yes, there are dozens of command lines. They'll probably all
incorporate a loop and a tool to translate uppercase to lowercase.

Here's my take for bash shell:

for JPG in *.JPG; do
# FILE.JPG -> file.jpg
# mv "$JPG" "$(echo $JPG | tr '[:upper:]' '[:lower:]')"
# FILE.JPG -> FILE.JPG.jpg
# mv "$JPG" "$JPG".jpg
# FILE.JPG -> FILE.jpg
# mv "$JPG" "${JPG%.*}".jpg
done

Alexander Skwar
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