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Top Forums Shell Programming and Scripting How To Run A For Loop In A Remsh? Post 302506119 by Korn0474 on Friday 18th of March 2011 02:09:17 PM
Old 03-18-2011
How To Run A For Loop In A Remsh?

Hi all,

I'm trying to remsh to another server and then execute a for loop command there but I'm getting unexpected errors and would appreciate any suggestions.

Ideally what I want to do is this:
Code:
for host in `cat host_file`
do
  remsh $host -n "
     cd /home/
     for DATABASE in `ls -d db[1-8]*`
     do
          [execute program] $DATABASE
     done"
done

Now my understanding is that you can't use new lines for remsh logic so the code would have to look like this:
Code:
for host in `cat host_file`
do
  remsh $host -n "cd /home/; for DATABASE in `ls -d db[1-8]*`; do; [execute program] $DATABASE;  done"
done

Unfortunately I get the following error:
Code:
ksh: syntax error at line 1 : `;' unexpected

So clearly I'm doing something wrong. I've tried chaning the placement of the semi colons but to no avail. Smilie
 

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Excel::Template::Container::Loop(3pm)			User Contributed Perl Documentation		     Excel::Template::Container::Loop(3pm)

NAME
Excel::Template::Container::Loop - Excel::Template::Container::Loop PURPOSE
To provide looping NODE NAME
LOOP INHERITANCE
Excel::Template::Container ATTRIBUTES
o NAME This is the name of the loop. It's used to identify within the parameter set what variables to expose to the children nodes each iteration. CHILDREN
None EFFECTS
None DEPENDENCIES
None USAGE
<loop name="LOOPY"> ... Children here ... </loop> In the above example, the children nodes would have access to the LOOPY array of hashes as parameters. Each iteration through the array would expose a different hash of parameters to the children. These loops work just like HTML::Template's loops. (I promise I'll give more info here!) There is one difference - I prefer using Perl-like scoping, so accessing of variables outside the LOOP scope from within is perfectly acceptable. You can also hide outside variables with inner values, if you desire, just like Perl. AUTHOR
Rob Kinyon (rob.kinyon@gmail.com) SEE ALSO
perl v5.14.2 2012-04-29 Excel::Template::Container::Loop(3pm)
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