Bash script execute command on multiple servers

Question

I'm trying to login into multiple servers and execute the following command:

arp -an|grep lanx>lanx

I'm using this method:

ssh [email protected] arp\ -an|grep\ lanx >lanx

but it is not working its giving me an error

Please show us the exact error you are getting. It might be though, because you didn't put the "arp" command in quotes und thus the pipe is interpreted locally and not the remote machine. Try ssh [email protected] 'arp -an|grep lanx' > lanx. — Christian.K
– Christian.K, Commented Aug 2, 2013 at 11:01
Yeah this have done the trick, it was cuase the ' ' thanks ! :) — user2642601
– user2642601, Commented Aug 2, 2013 at 11:05

lukash · Accepted Answer · 2013-08-02 11:07:09Z

1

ideally just put the commands in quotes like this:

ssh [email protected] '/sbin/arp -an | grep lanx' > lanx

or

ssh [email protected] '/sbin/arp -an' | grep lanx > lanx

The other problem might be the user admin on your machine does not have arp in PATH (is he root? arp is usually in /sbin/ and /sbin/ is usually not in PATH of a regular user.

answered Aug 2, 2013 at 11:07

lukash

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Comments

Michael Martinez · Accepted Answer · 2013-08-02 19:24:46Z

0

put in subshell. something like this will make things more clear:

(ssh xxxx arp -an) | grep lanx > /tmp/lanx

edited Aug 2, 2013 at 19:24

answered Aug 2, 2013 at 19:17

Michael Martinez

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