脚本：判断 ‘/etc/sysconfig/network-scripts/ifcfg-eth0’
BOOTPROTO=(dhcp)|(bootp) 变为static
IPADDR=
NETMASK=
程序如下：
#!/bin/bash
FILE="/etc/sysconfig/network-scripts/ifcfg-eth0"
read -P "Please input a ipaddress[192.168.0.1]:" MYIP
[ -z $MYIP ] && MYIP='192.168.0.1'
echo "Please input a netmask[255.255.255.0]:"
cat << EOF
1) 255.255.255.0
2) 255.255.0.0
3) 255.0.0
EOF
read CHOICE
case $CHOICE in
'1')
MMASK='255.255.255.0'
;;
'2')
MMASK='255.255.0.0'
;;
'3')
MMASK='255.0.0.0'
;;
'*')
[ -z $CHOICE ] && echo "Please input correct choice:" || MMASK='255.255.255.0'
;;
esac
[ -z $CHOICE ] && MMASK='255.255.255.0'
if grep -E "^BOOTPROTO=(dhcp)|(bootp)$" $FILE &>/dev/null ; then
sed -i 's/^BOOTPROTO=.*/BOOTPROTO=static/g' $FILE
grep “^IPADDR=.*” $FILE &>/dev/null && sed -i "s/IPADDR=.*/IPADDR=$MYIP/g" $FILE || sed -i "/^BOOTPROTO=.*/a \IPADDR=$MYIP" $FILE
grep "^NETMASK=.*" $FILE &>/dev/null && sed -i "s/NETMASK=.*/NETMASK=$MMASK/g" $FILE || sed -i "/^IPADDR=.*/a \NETMASK=$MMASK" $FILE
fi
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