do something with all files in all subdirs

[Superstoned]

hi,

I want to remove the idv2 tags from my musepack files, which i have accidentally added. but my files are put in several directory's (in fact, every band+every album in his own dir). I downloaded a command-line tool, to remove the idv2 tag, with a command like

idv2edit -remove <filename>

but... how to do this for all files in all dirs, in one command??? I guess it is possible, but how... I dont know. (actually I dont know much 'bout the commandline, and i cant find it in manuals, how-to's etc)

[baldyeti]

If your 'idv2edit' command can only act on one file at a time, try:

for $file in $( find /startdir -name '*.mp3' )
do
    idv2edit -remove $file
done

If it can handle a list of files, there's a slightly simpler form:

$ find /startdir -name '*.mp3' | xargs idv2edit -remove

I suggest you first susbtitue a plain 'echo' to your command, so you'll
see exactly which files will be touched.

[Superstoned]

hi...

I tried your commands, and, after some playing with man etc I was still unable to use them. find didnt return any mp3z, but I found out that if I modified the command into: find -name '*/*/*.mp3', it did return the filenames. but that didnt seem to change anything, so I guess id3v2edit doesnt accept more files.

so, I tried to copy-paste your first idea:

(the 'find' part works, at least, it returns alot of mpc-files)

for $file in $( find -name '*.mpc' ) ; do id3v2 -d $file ; done

but this only returned "bash: `$file': not a valid identifier". and I dont even know what that means... I understand what the the intention is of the piece of code, but I cant solve this problem.
tried read the man for bash, it told me that it should be allright, as far as I understood it.

[Superstoned]

(the first command replies: xargs: unmatched single quote)

[baldyeti]

for $file in $( find -name '*.mpc' ) ....

Sorry, that should be: "for file in..." (no dollar here, but one's needed when dereferencing)

[Superstoned]

aaah, tnx, I'm trying it now...

[Superstoned]

and it doesnt seem to work, although it comes closer. but now i get errors like

fopen: ./Bands/klassiek/09: id3v2: No such file or directory
fopen: -: id3v2: No such file or directory
fopen: The: id3v2: No such file or directory
fopen: Blue: id3v2: No such file or directory
fopen: Danube.mpc: id3v2: No such file or directory

looks like the directory's (and long filenames) are the problem?!?

command was:
for file in $( find -name '*.mpc' ) ; do id3v2 -d $file ; done
I tried to put the $file this way: '$file'. but that returned
fopen: $file: id3v2: No such file or directory


and im goin' now, for some days, so - ill check back later (next week). tnx for all the help and advice!

[baldyeti]

looks like the directory's (and long filenames) are the problem?!?

Indeed embedded spaces seem to interfere; try

id3v2 -d \"$file\"

Cheers,

bald.

[Dave_Bechtel]

--Here's a couple of more things you can try adapting to work with the ' find ' command: (NOTE: Case-conversion commands generally don't work on FAT32 - it thinks it's the same exact filename. Copy the files to a Linux filesystem like ext2 or reiserfs if you want them case-translated.)

# cvt all fnames to locase:

for i in *.[Mm][Pp]3; do mv "$i" `echo $i | tr '[A-Z]' '[a-z]'`; done

# cvt spaces to dashes

for i in *.mp3; do mv "$i" `echo $i | tr ' ' '-'`; done

# cvt to std extensions - another way

for i in *.MP3; do mv "$i" "`basename "$i" .MP3`.mp3"; done

and it doesnt seem to work, although it comes closer. but now i get errors like

fopen: ./Bands/klassiek/09: id3v2: No such file or directory
fopen: -: id3v2: No such file or directory
fopen: The: id3v2: No such file or directory
fopen: Blue: id3v2: No such file or directory
fopen: Danube.mpc: id3v2: No such file or directory

looks like the directory's (and long filenames) are the problem?!?

command was:
for file in $( find -name '*.mpc' ) ; do id3v2 -d $file ; done
I tried to put the $file this way: '$file'. but that returned
fopen: $file: id3v2: No such file or directory


and im goin' now, for some days, so - ill check back later (next week). tnx for all the help and advice!

[Superstoned]

hmmm, sorry i didnt reply earlier. thought I posted, but I think I forgot to press submit...

I've been on a festival for some days
got sick
so im back home...

anyway, I still haven't made it.

when I give the following line:

for file in $( find -name '*.mpc' ) ; do id3v2 -d $file ; done

I get:
(...)
fopen: ./Overig/Cypress: id3v2: No such file or directory
fopen: Hill/III: id3v2: No such file or directory
fopen: (Temples: id3v2: No such file or directory
fopen: of: id3v2: No such file or directory
fopen: Boom)/Cypress: id3v2: No such file or directory
fopen: Hill: id3v2: No such file or directory
fopen: -: id3v2: No such file or directory
fopen: 13: id3v2: No such file or directory
fopen: -: id3v2: No such file or directory
fopen: Strictly: id3v2: No such file or directory
fopen: Hip: id3v2: No such file or directory
fopen: Hop.mpc: id3v2: No such file or directory
(...)

there seems to be a problem with the spaces somewhere?

I tried:
for file in $( find -name '*.mpc' ) ; do id3v2 -d '$file' ; done

but I got:
(...)
fopen: $file: id3v2: No such file or directory
fopen: $file: id3v2: No such file or directory
fopen: $file: id3v2: No such file or directory
fopen: $file: id3v2: No such file or directory
fopen: $file: id3v2: No such file or directory
(...)