linux shell 指令碼 判斷一個檔案是否 存在
阿新 • • 發佈:2019-02-07
/etc/init.d/rcS
#!/bin/sh
# Start all init scripts in /etc/init.d
# executing them in numerical order.
#
for i in /etc/init.d/S??* ;do
# Ignore dangling symlinks (if any).
[ ! -f "$i" ] && continue
case "$i" in
*.sh)
# Source shell script for speed.
(
trap - INT QUIT TSTP
set start
. $i
)
;;
*)
# No sh extension, so fork subprocess.
$i start
;;
esac
done
if [ ! -f "/root/beijing.txt" ]; then
if [ -f "/root/jinan.txt" ]; then
ifconfig eth0 192.168.99.46
route add default gw 192.168 .99.1
echo "nameserver 8.8.4.4">> /etc/resolv.conf
fi
fi