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Editorial Team
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Asked: 2026-05-25T02:29:52+00:00

I am Currently trying to make a shell script that will email me and

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I am Currently trying to make a shell script that will email me and other receipients if the website says it is down for maintenance. Curently i am trying to use curl and grep to pipe to a variable if grep see’s the Phrase “Down for Maintenance” but when even when the website does not say that it it still outputs information. I want to make it so if the phrase exists it will make a vairiable true else it is false and just exits. Btw this is for a cronjob.

Here is what i have come up with so far. P.S sorry for being such a noob.

    ## Sends an email if the website is down for maintanance
    #RESPONSE = ''
    curl websiteaddress.com | grep "Down for Maintenance" | read RESPONSE
    if $RESPONSE
    then
    echo "Website is Down" | mail -s "Website is down for maintenance" email@address.com
    end else
    exit
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1 Answer

  1. Editorial Team

    Change:

    curl websiteaddress.com | grep "Down for Maintenance" | read RESPONSE
if $RESPONSE

    To:

    curl websiteaddress.com | grep -q "Down for Maintenance"
if [ $? -eq 0 ] ; then
    echo "Website is Down" | mail -s "Website is down for maintenance" email@address.com
; fi

    The grep -q tells grep to operate in “quiet mode”, meaning it won’t output anything. Instead it will exit with a return code of zero if a match was found, 1 if no match was found. the if [ $? -eq 0 ] checks the return code of grep.

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