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POPerl cmd option for printing first string from a matched line
 

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  1. POPerl cmd option for printing first string from a matched line
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    <p>I have a text file as input like this:let say it as xyz.txt</p> <pre><code>TIME SR No TYPE DATA 2.046103 1 1 Tx d 8 01 01 01 99 9A 9B 9C 9D 2.046163 3 1 Rx d 8 01 01 01 99 9A 9B 9C 9D 2.046361 2 1 Rx d 8 01 01 01 99 9A 9B 9C 9D 2.046916 1 3 Tx d 8 01 01 01 9B 9C 9D 9E 9F 2.046977 3 3 Rx d 8 01 01 01 9B 9C 9D 9E 9F 2.047177 2 3 Rx d 8 01 01 01 9B 9C 9D 9E 9F 2.048034 1 5 Tx d 8 01 01 01 AD AE AF B0 B1 2.048095 3 5 Rx d 8 01 01 01 AD AE AF B0 B1 2.048295 2 5 Rx d 8 01 01 01 AD AE AF B0 B1 2.050006 1 8 Tx d 8 01 01 01 B1 B2 B3 B4 B5 2.050065 3 8 Rx d 8 01 01 01 B1 B2 B3 B4 B5 2.050265 1 8 Rx d 8 01 01 01 B1 B2 B3 B4 B5 2.050632 2 601 Rx d 8 01 01 01 CA CB CC CD CE 2.050690 3 700 Rx d 8 01 01 01 CA CB CC CD CE 2.050887 1 700 Rx d 8 01 01 01 CA CB CC CD CE </code></pre> <p>Requirement: I like to extract the first numeric strings (TIME) from lines that contains the SR "1" and TYPE as "Rx" </p> <p>I hardly know perl and tried a command by reading on internet i.e:</p> <pre><code>perl -nle "print if /"1"\s(.+?)"Rx"/" xyz.txt &gt;&gt;output.txt </code></pre> <p>for extracting matched lines </p> <p>The output i got in output.txt is: </p> <pre><code>2.046163 3 1 Rx d 8 01 01 01 99 9A 9B 9C 9D 2.046361 2 1 Rx d 8 01 01 01 99 9A 9B 9C 9D 2.050265 1 8 Rx d 8 01 01 01 B1 B2 B3 B4 B5 2.050632 2 601 Rx d 8 01 01 01 CA CB CC CD CE 2.050887 1 700 Rx d 8 01 01 01 CA CB CC CD CE </code></pre> <p>Desired output(Requirement) are only these:</p> <pre><code>2.050265 2.050887 </code></pre> <p>The complete information about above two value are from xyz.txt :</p> <pre><code>2.050265 1 8 Rx d 8 01 01 01 B1 B2 B3 B4 B5 2.050887 1 700 Rx d 8 01 01 01 CA CB CC CD CE </code></pre> <p>help me....what changes i need to do, so that it will satisfy:</p> <p>a. consider only "1" from Rx row and not from No row in xyz.txt file.</p> <p>b. Remove all except first string in output.txt</p>
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    1. COUse code tags to format your data and code. Your post is very confusing.
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