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„etc/rc.local“ ändern

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Update der /etc/hosts und hostname im.
This commit is contained in:
Steffen Probst 2021-11-11 12:34:10 +01:00
parent 65887ec0ca
commit 72c250bcaf
1 changed files with 27 additions and 3 deletions
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30
etc/rc.local
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@ -31,13 +31,37 @@ fi
#ip a s wlan1 2&>1 /dev/null ||
#Check einbauen der aktive Verbindung prüft
if [ -d /home/pi ]; then
echo pi$(cat /sys/class/net/wlan0/address | sed '/://g') > /tmp/hostname && hostname --file /tmp/hostname
echo pi$(cat /sys/class/net/wlan0/address | sed s'/://g') > /tmp/hostname && hostname --file /tmp/hostname
else
echo thin$(cat /sys/class/net/wlan0/address | sed '/://g') > /tmp/hostname && hostname --file /tmp/hostname
echo thin$(cat /sys/class/net/wlan0/address | sed s'/://g') > /tmp/hostname && hostname --file /tmp/hostname
fi
cp /tmp/hostname /etc/hostname
# insert/update hosts entry
ip_address="127.0.2.1"
host_name=$(cat /tmp/hostname)
# find existing instances in the host file and save the line numbers
matches_in_hosts="$(grep -n $host_name /etc/hosts | cut -f1 -d:)"
host_entry="${ip_address} ${host_name} ${host_name}.lebenshilfe.local"
echo "Please enter your password if requested."
if [ ! -z "$matches_in_hosts" ]
then
echo "Updating existing hosts entry."
# iterate over the line numbers on which matches were found
while read -r line_number; do
# replace the text of each line with the desired host entry
sudo sed -i '' "${line_number}s/.*/${host_entry} /" /etc/hosts
done <<< "$matches_in_hosts"
else
echo "Adding new hosts entry."
echo "$host_entry" | sudo tee -a /etc/hosts > /dev/null
fi
#Fuer eth0, wenn kein WLAN vorhanden ist. Kann dann auskommentiert werden.
#echo rpi$(cat /sys/class/net/eth0/address | sed '/://g') > /tmp/hostname && hostname --file /tmp/hostname
#echo rpi$(cat /sys/class/net/eth0/address | sed s'/://g') > /tmp/hostname && hostname --file /tmp/hostname
# set network