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Top Forums Shell Programming and Scripting How to count number of occurances of string in a file? Post 302462034 by Shirisha on Wednesday 13th of October 2010 04:30:15 AM
Old 10-13-2010
How to count number of occurances of string in a file?

Gurus,

Need little guidance.
I have A.txt and B.txt file. B.txt file contains Unique strings.
Sample content of B.txt file for which i cut the fourth column uniquely and output directed to B.txt file
Quote:
abc
vbn
ghjjj
jhk:nbv:ghjjj
And A.txt file contains the above string as a fourth column which is last column.
So A.txt file fourth column content is
Quote:
abc
abc
abc
vbn
ghjjj
jhk:nbv:ghjjj
Code:
while read line
    do
    COUNT=`grep "$line" A.txt | wc -l`
    echo $line "," $COUNT >> output.txt
    done < B.txt

Output.txt file displays output
Quote:
abc 3
vbn 1
jhk:nbv:ghjjj 1
ghjjj 2
Here ghjjj should display 1 instead 2...
Can anybody guide me the better way to get this.

Thanks in advance!!!
 

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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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