[Lubuntu] Sed substitution with partially duplicate results

[John Hupp]

I'm using a script with sed to modify a configuration file. The script:

sed -i \
     -e 's/UPSCABLE usb/UPSCABLE ether/' \
     -e 's/UPSTYPE usb/UPSTYPE net/' \
     -e 's/DEVICE/DEVICE Lubuntu1:3551/' \
     -e 's/TIMEOUT 105/TIMEOUT 60/' \
     -e 's/NETSERVER on/NETSERVER off/' \
     -e 's/NISIP 0.0.0.0/NISIP 127.0.0.1/'
/etc/apcupsd/apcupsd.conf

It all works fine except for this substitution:
-e 's/DEVICE/DEVICE Lubuntu1:3551/'

It takes this line:
     DEVICE
and replaces it with this:
DEVICE Lubuntu1:3551 Lubuntu1:3551

Does anyone know why?
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