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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.

# 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 ]
    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"

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

but if it has no spaces I get
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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DDRESCUELOG(1)							   User Commands						    DDRESCUELOG(1)

ddrescuelog - tool for ddrescue logfiles SYNOPSIS
ddrescuelog [options] logfile DESCRIPTION
GNU ddrescuelog - Tool for ddrescue logfiles. Manipulates ddrescue logfiles, shows their contents, converts them to/from other formats, compares them, and tests rescue status. OPTIONS
-h, --help display this help and exit -V, --version output version information and exit -a, --change-types=<ot>,<nt> change the block types of a logfile -b, --block-size=<bytes> block size in bytes [default 512] -c, --create-logfile[=<tt>] create logfile from list of blocks [+-] -d, --delete-if-done delete the logfile if rescue is finished -D, --done-status return 0 if rescue is finished -f, --force overwrite existing output files -i, --input-position=<bytes> starting position of rescue domain [0] -l, --list-blocks=<types> print block numbers of given types (?*/-+) -m, --domain-logfile=<file> restrict domain to finished blocks in file -n, --invert-logfile invert block types (finished <-> others) -o, --output-position=<bytes> starting position in output file [ipos] -p, --compare-logfile=<file> compare block types in domain of both files -q, --quiet suppress all messages -s, --max-size=<bytes> maximum size of rescue domain to be processed -t, --show-status show a summary of logfile contents -v, --verbose be verbose (a 2nd -v gives more) -x, --xor-logfile=<file> XOR the finished blocks in file with logfile -y, --and-logfile=<file> AND the finished blocks in file with logfile -z, --or-logfile=<file> OR the finished blocks in file with logfile Numbers may be followed by a multiplier: b = blocks, k = kB = 10^3 = 1000, Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc... REPORTING BUGS
Report bugs to Ddrescue home page: General help using GNU software: COPYRIGHT
Copyright (C) 2012 Antonio Diaz Diaz. License GPLv3+: GNU GPL version 3 or later <> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. ddrescuelog 1.16 June 2012 DDRESCUELOG(1)

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