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Full Discussion: problem with spaces in filename
Top Forums Shell Programming and Scripting problem with spaces in filename Post 302527742 by colsinc on Sunday 5th of June 2011 03:40:38 AM
Old 06-05-2011
problem with spaces in filename
I have written a script to run ddrescue on a list of files.

Code:
#!/bin/bash
#
# A script to rescue data recursively using ddrescue.

srcDir=/damaged/hdd/movies/              #the source directory
desDir=/new/hdd/movies/                 #the destination directory
workDir=/new/hdd/movies/ddrescue        #location to store logs and working files

#preamble: I have already run rsync to copy files, but some failed part way through.

`rsync -rvn --size-only $srcDir* $desDir | sed "/speedup/d" | sed "/bytes\/sec/d" | sed "/sending\ incremental/d" | sed "/^$/d" > $workDir/work` #use rsync to generate list of partially transferred files.

workLength=`cat $workDir/work | wc -l`        #Find number of files in list.  For use with incrementing.
bookmark=0                    #Begin at first entry in list.

while [ $bookmark -lt $workLength ]
do
    bookmark=`expr $bookmark + 1`        #increment through the list
    currJob=`cat $workDir/work | sed -n ''$bookmark'p' | sed 's/\ /\\\ /g'`    #extract nth filename from list, replace spaces with "\ "
    echo "Start Rescue on " $currJob >> $workDir/runlog    #

    from=`echo $srcDir$currJob`        #creates full filename for source file,
    to=`echo $desDir$currJob`        #destination file,
    log=`echo $workDir/ddlog-$bookmark`    #and ddrescue log file.
    
    `ddrescue $from $to $log > $workDir/ddoutput-$bookmark` #run ddrescue, dumping output to file.
    cat $workDir/ddoutput-$bookmark | grep -B 2 Finished | grep errors >> $workDir/runlog    #read last 3 lines from ddrescue output and record it in runlog, so user can check which files are missing bits.
    echo -e "\n"
done
exit

My problem is that ddrescue does not like the filenames I am giving it. If the filename has spaces in it it says
Code:
ddrescue: too many files

but if it has no spaces I get
Code:
ddrescue: cannot open input file: No such file or directory

I have tried using "quotes" instead of \'ing every space, but no luck. If I replace the command 'ddrescue' with 'echo', run the script, and then manually copy the given filenames into ddrescue in another terminal it works fine. But this rather defeats the purpose..

I have only been learning scripting for a little while, so I feel like I must be missing something obvious, I just can't figure out what!
 

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LEARN ABOUT CENTOS

kbookmarkmerger

KBOOKMARKMERGER 
						 KDE User's Manual						   KBOOKMARKMERGER

NAME

       kbookmarkmerger - A program for merging a given set of bookmarks into the user's list of bookmarks.

SYNOPSIS

       kbookmarkmerger [Qt Options...] [KDE Options...] {directory}

DESCRIPTION

       kbookmarkmerger is a program for merging a given set of bookmarks into the user's set of bookmarks; if the user doesn't have any bookmarks
       created yet, a new bookmark list is created and the given bookmarks are inserted into it. While doing this, kbookmarkmerger keeps track of
       which files were merged in a previous run already, so no bookmark will get installed to the user's bookmarks more than once. In case KDE is
       running while kbookmarkmerger is executed, the KDE bookmark subsystem will be informed of any changes to the user's bookmarks, so that all
       applications accessing that information (i.e.Konqueror) will pick the changes up instantly.

       The traditionally used approach to achieve something like this was to use carefully crafted skeleton home directories when creating a new
       user account, to provide the user with a standard set of bookmarks. The problem with this approach is that after the user account has been
       created, no new bookmarks can be propagated.

       This mechanism is useful for system administrators who want to propagate a bookmark pointing to a certain document (for instance, important
       notes about the system) to all users. Distributors might find it useful as well, for instance by augmenting the software packages they
       supply with bookmark files which kbookmarkmerger merges into the user's bookmark list when the package is installed. That way,
       documentation shipped with a software package is easily and visibly accessible right after the package has been installed.

       The only parameter required by kbookmarkmerger is the name of a directory which shall be scanned for bookmark files. All files in the given
       directory will be considered for being merged into the user's setup. The files in the given directory should be valid XBEL files.

SEE ALSO

       Konqueror manual[1]

EXAMPLES

	   joe@hal9000:~> kbookmarkmerger /usr/local/extra-bookmarks

       Merges all bookmark files stored in /usr/local/extra-bookmarks into joe's list of bookmarks.

STANDARDS

	   XBEL specification[2]

RESTRICTIONS

       When determining whether a given bookmark file has been merged into the user's bookmarks already or not, kbookmarkmerger merely looks at
       the filename of the bookmark file - the contents are not checked at all. This means that changing a bookmark file which was already merged
       into a user's bookmarks will not trigger merging it once again.

       Also note that in case a user modifies a bookmark which was merged into his setup, the original bookmark file will be left unmodified.

AUTHOR

       Frerich Raabe<raabe@kde.org>

AUTHOR

       Frerich Raabe <raabe@kde.org>
	   Author.

NOTES

	1. Konqueror manual
	   help:/konqueror/index.html

	2. XBEL specification
	   http://pyxml.sourceforge.net/topics/xbel/

K Desktop Environment						February 1st, 2005						   KBOOKMARKMERGER
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