通过ssh批量管理的问题

zhaolianghz

#!/bin/bash

ssh -p65422 192.168.1.129 <<EOF
        ip a
        echo "_______________________________________"
        ip a | grep "inet " | grep -v "127.0.0.1" | sed  's/^    //g' | awk '{print $2}'
EOF

执行结果：
[root@shell ~]# sh -x test23.sh
+ ssh -p22 -t 192.168.16.238
Pseudo-terminal will not be allocated because stdin is not a terminal.
Address 192.168.16.238 maps to localhost, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 52:54:00:4c:ad:9f brd ff:ff:ff:ff:ff:ff
    inet 192.168.16.238/24 brd 192.168.16.255 scope global eth0
-----------------------------------------------------------------
inet 192.168.16.238/24 brd 192.168.16.255 scope global eth0

可以看到上面的sed 生效了，awk没有执行，为什么？？
[root@oracle10g ~]# ip a | grep "inet " | grep -v "127.0.0.1" | sed  's/^    //g' | /bin/awk '{print $2}'
192.168.16.238/24

命令本身没有问题~~

haooooaaa

转义 \$

.....

zhaolianghz

回复 2# haooooaaa

搞定，谢谢，为什么通过ssh来传输命令的时候，这个就需要转义了？

   

jason680

回复 3# zhaolianghz

与ssh 无关...

主要是
  CMD xxxx <<EOF
  特殊字, ex: $要转义...
EOF
   

$ cat  <<EOF
>  123 $1 $2
>  abc \$1 \$2
> EOF
123  
abc $1 $2

zhaolianghz

回复 5# 99超人


    谢谢

zhaolianghz

回复 4# jason680


    谢谢