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Top Forums Shell Programming and Scripting Is there an efficient way in finding and deleting files? Post 302197423 by penchal_boddu on Wednesday 21st of May 2008 02:26:42 AM
Old 05-21-2008
One way is Instead of having two find commands, U can store the output of first find in a file.
Then u can do wc -l and rm.

like..
Code:
find $dirPath -type f -ctime $noDaysOld   >> output 2>/dev/null
noOfFiles=`wc -l output`
cat output | xargs rm

This will be faster compared to the two find command approach.

xargs is a command that accepts list of words and provides those as input to the given command.

Iam think that calling a shell script in the -exec is a better approach..

Thanks
Penchal

Last edited by Yogesh Sawant; 05-21-2008 at 04:38 AM.. Reason: added code tags
 

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FDUPES(1)						      General Commands Manual							 FDUPES(1)

NAME
fdupes - finds duplicate files in a given set of directories SYNOPSIS
fdupes [ options ] DIRECTORY ... DESCRIPTION
Searches the given path for duplicate files. Such files are found by comparing file sizes and MD5 signatures, followed by a byte-by-byte comparison. OPTIONS
-r --recurse include files residing in subdirectories -s --symlinks follow symlinked directories -H --hardlinks normally, when two or more files point to the same disk area they are treated as non-duplicates; this option will change this behav- ior -n --noempty exclude zero-length files from consideration -f --omitfirst omit the first file in each set of matches -1 --sameline list each set of matches on a single line -S --size show size of duplicate files -q --quiet hide progress indicator -d --delete prompt user for files to preserve, deleting all others (see CAVEATS below) -v --version display fdupes version -h --help displays help SEE ALSO
md5sum(1) NOTES
Unless -1 or --sameline is specified, duplicate files are listed together in groups, each file displayed on a separate line. The groups are then separated from each other by blank lines. When -1 or --sameline is specified, spaces and backslash characters () appearing in a filename are preceded by a backslash character. CAVEATS
If fdupes returns with an error message such as fdupes: error invoking md5sum it means the program has been compiled to use an external program to calculate MD5 signatures (otherwise, fdupes uses interal routines for this purpose), and an error has occurred while attempting to execute it. If this is the case, the specified program should be properly installed prior to running fdupes. When using -d or --delete, care should be taken to insure against accidental data loss. When used together with options -s or --symlink, a user could accidentally preserve a symlink while deleting the file it points to. Furthermore, when specifying a particular directory more than once, all files within that directory will be listed as their own duplicates, leading to data loss should a user preserve a file without its "duplicate" (the file itself!). AUTHOR
Adrian Lopez <adrian2@caribe.net> FDUPES(1)
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