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POBash script grep for pattern in variable of text
 

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  1. POBash script grep for pattern in variable of text
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    <p>I have a variable which contains text; I can echo it to stdout so I think the variable is fine. My problem is trying to grep for a pattern in that variable of text. Here is what I am trying:</p> <pre><code>ERR_COUNT=`echo $VAR_WITH_TEXT | grep "ERROR total: (\d+)"` </code></pre> <p>When I echo $ERR_COUNT the variable appears to be empty, so I must be doing something wrong. </p> <p>How to do this properly? Thanks.</p> <p>EDIT - Just wanted to mention that testing that pattern on the example text I have in the variable does give me something (I tested with: <a href="http://rubular.com" rel="nofollow">http://rubular.com</a>)</p> <p>However the regex could still be wrong.</p> <p>EDIT2 - Not getting any results yet, so here's the string I'm working with:</p> <p><code>ALERT line125: Alert: Cannot locate any description for 'asdf' in the qwer.xml hierarchy. (due to (?i-xsm:\balert?\b) ALERT in ../hgfd.controls) ALERT line126: Alert: Cannot locate any description for 'zxcv' in the qwer.xml hierarchy. (due to (?i-xsm:\balert?\b) ALERT in ../dfhg.controls) ALERT line127: Alert: Cannot locate any description for 'rtyu' in the qwer.xml hierarchy. (due to (?i-xsm:\balert?\b) ALERT in ../kjgh.controls) [1] 22280 IGNORE total: 0 WARN total: 0 ALERT total: 3 ERROR total: 23 [1] + Done /tool/pandora/bin/gvim -u NONE -U NONE -nRN -c runtime! plugin/**/*.vim -bg ...</code></p> <p>That's the string, so hopefully there should be no ambiguity anymore... I want to extract the number "23" (after "ERROR total: ") into a variable and I'm having a hard time haha. </p> <p>Cheers</p>
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      1. VTUpMod
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      1. VTUpMod
    1. COSo are you looking for the following pattern: `ERROR total: ([0-9]*)`? i.e. would `ERROR total: (42)` be an example of what you're looking for?
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      1. USrsegal
    2. COIn the text I have patterns like: "..asdfasdfasdf ERROR total: 55 qwerweqrfdsa.." and I want to pin-point that number "55" after I see "ERROR total: "
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    3. COare there linebreaks in the input? is the pattern only once occuring or possibly multiple times?
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      1. POBash script grep for pattern in variable of text
      1. USTheodros Zelleke
 

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