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Thread: xargs and files names with spaces problem

  1. #1
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    Question xargs and files names with spaces problem

    Hi,
    I'm trying to figure out a command to move or delete duplicate files from a directory using 'fdupes' and 'xargs'. Here's what I have so far
    Code:
    fdupes -f . | xargs mv -t ~/duplicates
    The problem with this command is that it can't handle file names with spaces in them. Reading xargs's man page there's a --delimiter option which is supposed to accepet /n but when I use it it still splits the file name:
    Code:
    fdupes -f . | xargs --delimiter=\n  mv -t ~/duplicates
    xargs also has -0 option with works with null sperators but fdupes only used \n as a seperator.
    Any ideas on how to do this?

    Thanks
    Last edited by abadr; February 20th, 2011 at 12:14 AM.
    A.B.

  2. #2
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    Re: xargs and files names with spaces problem

    I don't know if this will help, but in Ubuntu, spaces are "escaped" with "\"

    example
    Code:
    env WINEPREFIX="/home/an/.wine" wine C:\\windows\\command\\start.exe /Unix /home/an/.wine/dosdevices/c:/users/an/Start\ Menu/Programs/Avery\ Dennison/DesignPro\ 5.lnk
    This is an actual link from WINE.
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    Ask what you can do for
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  3. #3
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    Re: xargs and files names with spaces problem

    put the delimiter in quotes:
    Code:
    fdupes -f . | xargs --delimiter="\n"  mv -t ~/duplicates
    Last edited by MadCow108; February 14th, 2011 at 11:16 PM.

  4. #4
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    Re: xargs and files names with spaces problem

    Quote Originally Posted by abadr View Post
    Hi,
    I'm trying to figure out a command to move or delete duplicate files from a directory using 'fdupes' and 'xargs'. Here's what I have so far
    Code:
    fdupes -f . | xargs mv -t ~/duplicates
    The problem with this command is that it can't handle file names with spaces in them. Reading xargs's man page there's a --delimiter option which is supposed to accepet /n but when I use it it still splits the file name:
    Code:
    fdupes -f . | xargs --delimiter=\n  mv -t ~/duplicates
    xargs also has -0 option with works with null sperators but fdupes only used \n as a seperator.
    Any ideas on how to do this?

    Thanks
    I don't know what 'fdupes' is, but 'xargs' has an option -0, which goes well together with the option -print0 of 'find'. Maybe 'fdupes' has something similar.

  5. #5
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    Re: xargs and files names with spaces problem

    Assuming none of the filenames contain newlines, you can use a while read loop instead.

    Code:
    while IFS= read -r file; do 
      mv "$file" ~/duplicates
    done < <(fdupes -f .)
    See http://mywiki.wooledge.org/BashFAQ/001 for more.

  6. #6
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    Re: xargs and files names with spaces problem

    Or this one?
    Code:
    IFS=$'\n'; for f in $(fdupes -f .) ; do mv -t ~/duplicates "$f" ; done

  7. #7
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    Re: xargs and files names with spaces problem

    Quote Originally Posted by The Cog View Post
    Or this one?
    Code:
    IFS=$'\n'; for f in $(fdupes -f .) ; do mv -t ~/duplicates "$f" ; done
    Nope. Check out the link posted by geirha.

    If you use a for loop, you should disable pathname expansion:
    Code:
    oIFS=$IFS IFS=$'\n' ;set -o noglob; for file in $(fdubes -f ./); do echo "$file"; done; IFS=$oIFS ; set +o noglob

  8. #8
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    Smile Re: xargs and files names with spaces problem

    Thank you all, the following worked by adding another "\" to the "\n":
    Code:
    fdupes -f . | xargs --delimiter=\\n  mv -t ~/duplicates
    A.B.

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