shell脚本问题

tingfengmanbu

原帖由 ynchnluiti 于 2008-11-19 13:42 发表


我这里有没有"exec /bin/cat /root/.ssh/known_hosts"都可以。有的话会提示
The authenticity of host '192.168.10.73 (192.168.10.73)' can't be established.
....

不去掉这句和手动执行有提示信息吗？

去掉这句我这就有错误提示[root@localhost opt]# sh scp.sh
scp.sh: line 3: spawn: command not found
couldn't read file "*(yes/no)?": no such file or directory
scp.sh: line 5: send: command not found
couldn't read file "*password:": no such file or directory
scp.sh: line 7: send: command not found
couldn't read file "eof": no such file or directory

就是手动执行的脚本
但是直接scp sql.sql root@192.168.1.110：/tmp/是可以成功的。

ynchnluiti

原帖由 tingfengmanbu 于 2008-11-19 13:45 发表

去掉这句我这就有错误提示[root@localhost opt]# sh scp.sh
scp.sh: line 3: spawn: command not found
couldn't read file "*(yes/no)?": no such file or directory
scp.sh: line 5: send: command not  ...

我没说清楚。
不注释掉exec .... 时执行脚本的提示信息。
手动执行scp sql.sql root@192.168.1.110：/tmp/的提示信息（RSA key， 密码输入提示等）
我这里开始id_rsa的访问权限有问题。
$ ll /root/.ssh/id_rsa
-rw------- 1 root root 887 Sep 30  2005 /root/.ssh/id_rsa

luo118

chmod 600 /root/.ssh/id_rsa 再试试

tingfengmanbu

原帖由 ynchnluiti 于 2008-11-19 13:50 发表

我没说清楚。
不注释掉exec .... 时执行脚本的提示信息。
手动执行scp sql.sql root@192.168.1.110：/tmp/的提示信息（RSA key， 密码输入提示等）
我这里开始id_rsa的访问权限有问题。
$ ll /root/.ssh/ ...

[root@localhost opt]# scp sql.sql root@192.168.1.190:/tmp/
The authenticity of host '192.168.1.190 (192.168.1.190)' can't be established.
RSA key fingerprint is db:d5:51:0e:f7:4a:f3:e7:28:36:21:5c:5b:74:e1:19.
Are you sure you want to continue connecting (yes/no)? [root@localhost opt]#
[root@localhost opt]# scp sql.sql root@192.168.1.190:/tmp/
The authenticity of host '192.168.1.190 (192.168.1.190)' can't be established.
RSA key fingerprint is db:d5:51:0e:f7:4a:f3:e7:28:36:21:5c:5b:74:e1:19.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.190' (RSA) to the list of known hosts.
root@192.168.1.190's password:

-rw-r--r-- 1 root root 395 11-19 13:49 .ssh/known_hosts

tingfengmanbu

原帖由 luo118 于 2008-11-19 14:03 发表
chmod 600 /root/.ssh/id_rsa 再试试

权限是600的。。

ynchnluiti

原帖由 tingfengmanbu 于 2008-11-19 14:03 发表

[root@localhost opt]# scp sql.sql root@192.168.1.190:/tmp/
The authenticity of host '192.168.1.190 (192.168.1.190)' can't be established.
RSA key fingerprint is db:d5:51:0e:f7:4a:f3:e7:28:36: ...

提示的是每次需要添加authenticity of host到known_hosts

exec /bin/cat </dev/null >>/root/.ssh/known_hosts

[ 本帖最后由 ynchnluiti 于 2008-11-19 14:17 编辑 ]

lasama

测试脚本时
用 sh -x file.sh，可查看脚本执行的每一步，这样比较容易找出问题所在

tingfengmanbu

原帖由 ynchnluiti 于 2008-11-19 14:05 发表

提示的是每次需要添加authenticity of host到known_hosts

exec /bin/cat >/root/.ssh/known_hosts

请问把权限改成600么？

ynchnluiti

原帖由 tingfengmanbu 于 2008-11-19 14:19 发表

请问把权限改成600么？

/root/.ssh/known_hosts我这里不需要。
/root/.ssh/id_rsa需要，不然会提示
Permissions 0644 for '/root/.ssh/id_rsa' are too open.
It is recommended that your private key files are NOT accessible by others. 之类的。

tingfengmanbu

原帖由 lasama 于 2008-11-19 14:13 发表
测试脚本时
用 sh -x file.sh，可查看脚本执行的每一步，这样比较容易找出问题所在

[root@localhost opt]# sh -x scp.sh
+ exec /bin/cat