I have the following code for removing duplicate records based on fields in inputfile file & moves the duplicate records in duplicates file(1st Awk) & in 2nd awk i fetch the non duplicate entries in inputfile to tmp file and use move to update the original file.
Requirement:
Can both the awk be combined in single call? or is there any efficient way to do the same?
Hello,
I can remove duplicate entries in a file by:
sort File1 | uniq > File2
but how can I remove duplicates without sorting the file?
I tried cat File1 | uniq > File2 but it doesn't work
thanks (4 Replies)
Hello Experts,
I have two files named old and new. Below are my example files. I need to compare and print the records that only exist in my new file. I tried the below awk script, this script works perfectly well if the records have exact match, the issue I have is my old file has got extra... (4 Replies)
Hi,
I'm using the below command to sort and remove duplicates in a file. But, i need to make this applied to the same file instead of directing it to another.
Thanks (6 Replies)
I need to use a bash script to remove duplicate files from a download list, but I cannot use uniq because the urls are different.
I need to go from this:
http://***/fae78fe/file1.wmv
http://***/39du7si/file1.wmv
http://***/d8el2hd/file2.wmv
http://***/h893js3/file2.wmv
to this:
... (2 Replies)
Hi All,
I have searched many threads for possible close solution. But I was unable to get simlar scenario.
I would like to print all duplicate based on 3rd column except the first occurance. Also would like to print if it is single entry(non-duplicate).
i/P file
12 NIL ABD LON
11 NIL ABC... (6 Replies)
I have a file with the following format:
fields seperated by "|"
title1|something class|long...content1|keys
title2|somhing class|log...content1|kes
title1|sothing class|lon...content1|kes
title3|shing cls|log...content1|ks
I want to remove all duplicates with the same "title field"(the... (3 Replies)
Here is my task :
I need to sort two input files and remove duplicates in the output files :
Sort by 13 characters from 97 Ascending
Sort by 1 characters from 96 Ascending
If duplicates are found retain the first value in the file
the input files are variable length, convert... (4 Replies)
Hi I have a below file structure.
200,1245,E1,1,E1,,7611068,KWH,30, ,,,,,,,,
200,1245,E1,1,E1,,7611070,KWH,30, ,,,,,,,,
300,20140223,0.001,0.001,0.001,0.001,0.001
300,20140224,0.001,0.001,0.001,0.001,0.001
300,20140225,0.001,0.001,0.001,0.001,0.001
300,20140226,0.001,0.001,0.001,0.001,0.001... (1 Reply)
Greetings Experts,
Issue: Within awk script, remove the duplicate occurrences that are space (1 single space character) separated
Description: I am processing 2 files using awk and during processing, I am building an array and there are duplicates on this; how can I delete the duplicates... (3 Replies)
Discussion started by: chill3chee
3 Replies
LEARN ABOUT DEBIAN
fdupes
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
for every directory given follow subdirectories encountered within
-R --recurse:
for each directory given after this option follow subdirectories encountered within (note the ':' at the end of option; see the
Examples section below for further explanation)
-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
-A --nohidden
exclude hidden files from consideration
-1 --sameline
list each set of matches on a single line
-S --size
show size of duplicate files
-m --summarize
summarize duplicate files information
-q --quiet
hide progress indicator
-d --delete
prompt user for files to preserve, deleting all others (see CAVEATS below)
-N --noprompt
when used together with --delete, preserve the first file in each set of duplicates and delete the others without prompting the user
-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.
EXAMPLES
fdupes a --recurse: b
will follow subdirectories under b, but not those under a.
fdupes a --recurse b
will follow subdirectories under both a and b.
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 internal 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)