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Re: Looping in shellcommands
From: |
Mark . Burgess |
Subject: |
Re: Looping in shellcommands |
Date: |
Thu, 1 Aug 2002 12:58:24 +0200 (MET DST) |
You could do this either with a wrapper or, as you suggest,
by getting a list of dirs in a variable and setting SplitOn = ( " " )
to make it into an iterative list.
M
On 25 Jul, Christopher Browne wrote:
> I've got some situations where I need to run a command on each
> file/directory in a list.
>
> It's not quite clear how to accomplish that.
>
> What I have done is thus:
>
> shellcommands:
> chvatal::
> # clean up SN news spool
> "/bin/ls /var/spool/sn | /usr/bin/xargs -n 1 /usr/sbin/snexpire -5d"
>
> What I'd _like_ to do is to set up a variable to contain all the
> directory names under /var/spool/sn, and invoke the snexpire script on
> each one. Perhaps like:
>
> control:
> chvatal::
> sndirs= ("exec /bin/ls /var/spool/sn")
>
> shellcommands:
> chvatal::
> "/usr/sbin/snexpire -5d $(sndirs)"
>
> although there's something not quite right there, as it doesn't _look_
> like that would be much of an "iterator."
>
> In shell script, it would be something like:
>
> for dir in `ls /var/spool/sn`; do
> /usr/sbin/snexpire -5d $dir
> done
>
> Am I trying to be overly clever? To be sure, what I've got up top with
> the "xargs" does _work_. But it seems likely there's a better "cfengine
> idiom" for it.
> --
> (concatenate 'string "cbbrowne" "@ntlug.org")
> http://www.ntlug.org/~cbbrowne/multiplexor.html
> Rules of the Evil Overlord #207. "Employees will have conjugal visit
> trailers which they may use provided they call in a replacement and
> sign out on the timesheet. Given this, anyone caught making out in a
> closet while leaving their station unmonitored will be shot."
> <http://www.eviloverlord.com/>
>
> _______________________________________________
> Help-cfengine mailing list
> Help-cfengine@gnu.org
> http://mail.gnu.org/mailman/listinfo/help-cfengine
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