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https://github.com/pi-hole/pi-hole
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using double bracket notation
Despite the script running successfully, it produced this error: `/usr/local/bin/gravity.sh: line 8: [: missing `]'` prior to this fix.
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@ -5,7 +5,7 @@
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# This script should only be run after you have a static IP address set on the Pi
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piholeIP="$1"
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if [ -n "$piholeIP"]; then
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if [[ -n "$piholeIP" ]]; then
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piholeIP=$(hostname -I|xargs)
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fi
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