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Top Forums Shell Programming and Scripting Plz Help. Compare 2 files field by field and get the output in another file. Post 302676697 by Chirel on Wednesday 25th of July 2012 04:20:36 AM
Old 07-25-2012
Hi, check this

Code:
#!/bin/bash

>extra.txt
>mismatch.txt
while read sLine; do
    OFS="$IFS"
    IFS="|"
    sTab=( $sLine );
    tLine="$(egrep "^"${sTab[0]} target.txt)"
    if [ -z "$tLine" ]; then echo "$sLine" >>extra.txt; IFS="$OFS"; continue; fi
    tTab=( $tLine );
    for (( i = 1 ; i < ${#sTab[@]} ; i++ )); do
        [ "${sTab[$i]}" = "${tTab[$i]}" ] || echo "${sTab[0]}|$i|${sTab[$i]}|${tTab[$i]}" >>mismatch.txt
    done
    IFS="$OFS"
done <source.txt

echo "Number of Extra records in Source file : $(cat extra.txt|wc -l)"
cat extra.txt

echo "Number of mismatches : $(cat mismatch.txt|wc -l)"
cat mismatch.txt

This User Gave Thanks to Chirel For This Post:
 

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STREAM_COPY_TO_STREAM(3)						 1						  STREAM_COPY_TO_STREAM(3)

stream_copy_to_stream - Copies data from one stream to another

SYNOPSIS
int stream_copy_to_stream (resource $source, resource $dest, [int $maxlength = -1], [int $offset]) DESCRIPTION
Makes a copy of up to $maxlength bytes of data from the current position (or from the $offset position, if specified) in $source to $dest. If $maxlength is not specified, all remaining content in $source will be copied. PARAMETERS
o $source - The source stream o $dest - The destination stream o $maxlength - Maximum bytes to copy o $offset - The offset where to start to copy data RETURN VALUES
Returns the total count of bytes copied. CHANGELOG
+--------+------------------------------+ |Version | | | | | | | Description | | | | +--------+------------------------------+ | 5.1.0 | | | | | | | Added the $offset parameter | | | | +--------+------------------------------+ EXAMPLES
Example #1 A stream_copy_to_stream(3) example <?php $src = fopen('http://www.example.com', 'r'); $dest1 = fopen('first1k.txt', 'w'); $dest2 = fopen('remainder.txt', 'w'); echo stream_copy_to_stream($src, $dest1, 1024) . " bytes copied to first1k.txt "; echo stream_copy_to_stream($src, $dest2) . " bytes copied to remainder.txt "; ?> SEE ALSO
copy(3). PHP Documentation Group STREAM_COPY_TO_STREAM(3)
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