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Full Discussion: Venn diagram results using awk
Top Forums Shell Programming and Scripting Venn diagram results using awk Post 302672581 by jacobs.smith on Monday 16th of July 2012 03:09:46 PM
Old 07-16-2012
Quote:
Originally Posted by Vryali
I've got to step out, so can't actually finish this, but I got the bulk of if basically done, just needs some adaptation and to be thrown in a shell script that takes parameters to be done cleaner.

Code:
for num in $(cat 1.txt|awk '{print $1}'); do grep "^$num" [21].txt | tr -d '\n' | sed 's/\([0-9].txt:\)//g' | sed 's/\([0-9]\)[a-zA-Z]/\1/g'; echo ''; done | sed 's/^[ \t]*//;s/[ \t]*$//;/^$/d' | awk 'int($3) {print $0}'

More organized...
Code:
for num in $(cat 1.txt|awk '{print $1}'); do 
    # grep - Pull lines from relevant files and output them
    # Will be in the format '<filename>:<line>
    # Trim the newline so it's all one one-line for each entry.
    # Use sed to remove the filenames from the line
    # We'll have a <number>a <number2> -  sed removes the letter after the number
    grep "^$num" [21].txt | \
    tr -d '\n' | \
    sed 's/\([0-9].txt:\)//g' | \
    sed 's/\([0-9]\)[a-zA-Z]/\1/g'
    #We removed CRs, add one back to delimit EOL
    echo ' '
done | \
    sed 's/^[ \t]*//;s/[ \t]*$//;/^$/d' | \
    awk 'int($3) {print $0}'
    # Use sed to trim all leading/trailing whitespace and delete empty lines
    # Use awk to only print lines that have a 3rd parameter, IE it was found in both files.

That hard coded in a few files will give you what you'd want, just change "[21].txt" to the proper regex or hardcoded names (and this should support 2 or 3 file comparisons as written, just change hardcoded lines). If that isn't enough to get you going I'll try to check back in later this afternoon for anything else.

Edit: What I see running the above with the same text files you gave:
Code:
$ for num in $(cat 1.txt|awk '{print $1}'); do grep "^$num" [21].txt | tr -d '\n' | sed 's/\([0-9].txt:\)//g' | sed 's/\([0-9]\)[a-zA-Z]/\1/g'; echo ' '; done | sed 's/^[ \t]*//;s/[ \t]*$//;/^$/d' | awk 'int($3) {print $0}'
a 10 21
b 11 22
c 12 23
g 16 24
h 17 25
i 18 26

Vryali,

Thanks for ur time, patience and interest. You proved the core value of this forum.

I will see how this solution is working and will post the outcome too.

Please look into it to make it generate all requested files.

I am a novice in coding as I come from the life sciences shop.

Thanks a ton for all ur support.
 

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unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME

       unix2dos - UNIX to DOS text file format converter

SYNOPSYS

       unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...]

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       This manual page documents unix2dos, the program that converts text files in UNIX format to DOS format.

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DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHOR

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MISCELLANY

       Tested environment:

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SEE ALSO

       dos2unix(1)

1995.03.31							   unix2dos v2.2						       unix2dos(1)
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