ssh in loop

LGMENG

Hi All,

The script below only runs for the 1st line of file machines.list.
Could someone help explain detailedly how it runs?

#!/bin/ksh    while read line ;    do        ssh myuserid@$line $1 >> $home/output.txt    done  <machines.list

The contents of machines.list is:

proxy-01.mydomain.com
proxy-02.mydomain.com
proxy-03.mydomain.com


Thanks in advance.

dradhzn

#!/bin/ksh -x

add -x ,run again and paste the output please .

寂寞烈火

用for结构, 或者参阅:
http://bbs.chinaunix.net/thread-674903-1-1.html 第九楼

LGMENG

FYI

$ksh -x myscript.ksh hostname
+ 0< machines.list
+ read line
+ ssh myuserid@proxy-01.mydomain.com hostname
+ 1>> $home/output.txt
+ read line

dradhzn

原帖由 LGMENG 于 2007-8-25 15:06 发表
FYI

$ksh -x myscript.ksh hostname
+ 0< machines.list
+ read line
+ ssh myuserid@proxy-01.mydomain.com hostname
+ 1>> $home/output.txt
+ read line

first host proxy-01.mydomain.com any output ?  
btw , ssh using password authentication or public key authentication ?

LGMENG

the result is as follows,

$cat $home/output.txt
proxy-01

and ssh uses public key authentication

dradhzn

try change machines.list to  

localhost
proxy-01.mydomain.com