Skip to main content
Answer

Script to set date and time if date and time is before 2012

  • June 10, 2015
  • 4 replies
  • 29 views
G
Forum|alt.badge.img+18

Hey all,
I'm trying to write a script to check date and time on a computer at startup to see if it is set before 2012. It would have to be locally run not from the JSS since its fixing the network connection.

The reason is when any of our machines run out of power they reset to a date before our networks certificate was created thereby keeping them from authenticating to our network.

I just need to have a script check the date and time and if its before 2012, set it to after june 2012 and then turn off wifi and turn it back on.

Thanks for any help you can provide!
Gabe Shackney
Princeton Public Schools

Best answer by davidacland

Here you go:

#!/bin/bash

macdate=$(date +"%Y%m%d")
comparison="20120101"

if [ $comparison -ge $macdate ]; then
    echo "Date is before 2012"
    date 0102010112
else
    echo "Date is after 2012"
fi

It sets the date to 2nd Jan 2012 if its the 1st Jan 2012 or earlier. If its not configured already, I would probably enable an NTP server on the clients after the script has run and they have a network connection again.

GabePrinceton Public Schools

    4 replies

    davidacland
    Forum|alt.badge.img+18
    • davidacland
    • Valued Contributor
    • Answer
    • June 10, 2015

    Here you go:

    #!/bin/bash

macdate=$(date +"%Y%m%d")
comparison="20120101"

if [ $comparison -ge $macdate ]; then
    echo "Date is before 2012"
    date 0102010112
else
    echo "Date is after 2012"
fi

    It sets the date to 2nd Jan 2012 if its the 1st Jan 2012 or earlier. If its not configured already, I would probably enable an NTP server on the clients after the script has run and they have a network connection again.

    davidacland
    Forum|alt.badge.img+18
    • davidacland
    • Valued Contributor
    • June 12, 2015

    Hi @gshackney, did that script do what you needed?

    G
    Forum|alt.badge.img+18
    • GabePPS
    • Author
    • Esteemed Contributor
    • June 12, 2015

    Yes actually the script is working perfectly....I'm just not having luck getting the launch daemon to call it at startup.

    Here's the modified script that also turns off wifi then turns it back on then waits 10 seconds then sets time to ntp time.

    My Daemon doesn't seem to be working though.

    #!/bin/bash
macdate=$(date +"%Y%m%d")
comparison="20150101"
if [ $comparison -ge $macdate ]; then
date 0102010115
networksetup -setairportpower en1 off
networksetup -setairportpower en1 on
sleep 10
ntpdate -u time.apple.com
fi

    Here is the daemon:

    <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
    <dict>
        <key>Label</key>
        <string>com.setdateandtime.app</string>
        <key>ProgramArguments</key>
        <string>/bin/sh</string>
        <string>/Library/Application Support/JAMF/setdateandtime.sh</string>
        <key>RunAtLoad</key>
        <true/>
        <key>KeepAlive</key>
        <false/>
    </dict>
</plist>


    Gabe Shackney
    Princeton Public Schools

    GabePrinceton Public Schools
    davidacland
    Forum|alt.badge.img+18
    • davidacland
    • Valued Contributor
    • June 12, 2015

    Try this one (I take it you are putting it into /Library/LaunchDaemons and want it to run on startup?):

    <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.setdateandtime.app</string>
    <key>ProgramArguments</key>
    <array>
        <string>/Library/Application Support/JAMF/setdateandtime.sh</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
</dict>
</plist>
    Terms & ConditionsCookie settingsAccessibility statement