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linux shell 指令碼 判斷一個檔案是否 存在

/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