**ネットワークインターフェイスのUP/DOWN [#z563f419]
このスクリプトは設定値に従って所定の動作をするスクリプトです。
目次
#Contents
**NIC UP [#i89e732d]
**概要 [#qc907a21]
LinuxにてNICのUp/Downを行うスクリプト。~
フェイルオーバーの切り替え制御処理のパーツなどに使用します。~
#!/bin/sh
# ----------------------------------
# Network Interface Up/Down Script
# ----------------------------------
# Version : 1.0
# date : 2008/04/16
export LANG=C
export PATH=/bin:/sbin:/usr/bin:/usr/sbin:$PATH
# Set
TARGET="eth0"
ACTION="UP"
# Exec
case $ACTION in
UP)
# Up Check
ifconfig | grep $TARGET > /dev/null
if [ $? = "0" ]; then
echo $TARGET" is up - no action"
exit 0
fi
# Interface Up
ifup $TARGET
# Up Check
ifconfig | grep $TARGET > /dev/null
if [ $? = "0" ]; then
echo $TARGET" is up - Interface up success"
else
echo $TARGET" is down - Interface up failed"
fi
;;
DOWN)
# Down Check
ifconfig | grep $TARGET > /dev/null
if [ $? = "1" ]; then
echo $TARGET" is down - no action"
exit 0
fi
# Interface Down
ifdown $TARGET
# Down Check
ifconfig | grep $TARGET > /dev/null
if [ $? = "0" ]; then
echo $TARGET" is up - Interface down failed"
else
echo $TARGET" is down - Interface down success"
fi
;;
*)
echo "ERR: Script Setting Error"
;;
esac
exit 0
# EOF
**使い方 [#pf5326f5]
第一引数に対象のインターフェイスを指定、第二引数に動作（UP / DOWN）を指定します。
**NIC DOWN [#ke9c0a8e]
-eth0をUP
./nic-ctrl.sh eth0 UP
~
-eth1をDOWN
./nic-ctrl.sh eth1 DOWN
**コード [#j0533493]
-nic-ctrl.sh
#!/bin/sh
# ----------------------------------
# Network Interface Up/Down Script
# ----------------------------------
# Version : 1.0
# date : 2008/04/16
export LANG=C
export PATH=/bin:/sbin:/usr/bin:/usr/sbin:$PATH
# Set
TARGET="eth0"
ACTION="DOWN"
TARGET=$1
ACTION=$2
# Exec
case $ACTION in
UP)
# Up Check
ifconfig | grep $TARGET > /dev/null
if [ $? = "0" ]; then
echo $TARGET" is up - no action"
exit 0
fi
# Interface Up
ifup $TARGET
# Up Check
ifconfig | grep $TARGET > /dev/null
if [ $? = "0" ]; then
echo $TARGET" is up - Interface up success"
else
echo $TARGET" is down - Interface up failed"
fi
;;
DOWN)
# Down Check
ifconfig | grep $TARGET > /dev/null
if [ $? = "1" ]; then
echo $TARGET" is down - no action"
exit 0
fi
# Interface Down
ifdown $TARGET
# Down Check
ifconfig | grep $TARGET > /dev/null
if [ $? = "0" ]; then
echo $TARGET" is up - Interface down failed"
else
echo $TARGET" is down - Interface down success"
fi
;;
*)
echo "ERR: Script Setting Error"
;;
esac
exit 0
# EOF
