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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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LEARN ABOUT LINUX

shtool-subst

SHTOOL-SUBST.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-SUBST.TMP(1)

NAME

       shtool-subst - GNU shtool sed(1) substitution operations

SYNOPSIS

       shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
       [-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]

DESCRIPTION

       This command applies one or more sed(1) substitution operations to stdin or any number of files.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -n, --nop
	   No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.

       -w, --warning
	   Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
	   operations resulted in no content change on all files.

       -q, --quiet
	   Suppress warning on substitution operation resulting in no content change.

       -s, --stealth
	   Stealth operation. Preserve timestamp on file.

       -i, --interactive
	   Enter interactive mode where the user has to approve each operation.

       -b, --backup ext
	   Preserve backup of original file using file name extension ext.  Default is to overwrite the original file.

       -e, --exec cmd
	   Specify sed(1) command directly.

       -f, --file cmd-file
	   Read sed(1) command from file.

EXAMPLE

	#   shell script
	shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]

	#    RPM spec-file
	%install
	    shtool subst -v -n 
		-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g' 
		-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g' 
		`find . -name Makefile -print`
	    make install

HISTORY

       The GNU shtool subst command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 2001 for GNU shtool.  It was prompted
       by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.

SEE ALSO

       shtool(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-SUBST.TMP(1)
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