Question

2

Grep for contents between two markers with newlines

rated 0 times [ 2] [ 0] / answers: 1 / hits: 1934 / 3 Years ago, thu, october 21, 2021, 2:57:13

Just curious if there's a way I can show the output between two markers?

I was trying grep -r "<cron_expr>.*</run>" * but it doesn't seem to be returning as
expected. Which is to say its not showing newline breaks?

So I guess the the real question is how can i find out what between two markers
regardless of newline BS. I can't install on this system so no pcregrep =(

Maybe AWK?

(P.s. someone should make an AWK tag)

<crontab>

    <jobs>

        <enterprise_reward_balance_warning_notification>

            <schedule><cron_expr>1 * * * *</cron_expr></schedule>

            <run><model>enterprise_reward/observer::scheduledBalanceExpireNotification</model></run>

        </enterprise_reward_balance_warning_notification>

        <enterprise_reward_expire_points>

            <schedule><cron_expr>1 * * * *</cron_expr></schedule>

            <run><model>enterprise_reward/observer::scheduledPointsExpiration</model></run>

        </enterprise_reward_expire_points>

    </jobs>

</crontab>

I just want to show whats on the <schedule> and <run> line(s if more than one, like above) anytime I see and what file they're in.

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diket

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1 Year ago

answered 3 Years ago aradxalte · Accepted Answer

AWK script

AWK is probably the answer using the /start/,/stop/ pattern like this:

/<schedule>/,/</schedule>/ {

    print;

}

/<run>/,/</run>/ {

    print;

}

This will print everything in the schedule and run tags (including the tags) and will preserve new lines. Adapt it to print what you need. To run it:

cat myfile.txt | awk -f script.awk

XSLT style sheet

Here's an XSLT version that should do something very similar. Run it using xsltproc, which should be installed by default.

<?xml version="1.0" encoding="ISO-8859-1"?>

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">



<xsl:template match="schedule">

    <xsl:value-of select="." />

</xsl:template>



<xsl:template match="run">

    <xsl:value-of select="." />

</xsl:template>



</xsl:stylesheet>