esimmonds wrote:
Hi,
First of all, let me compliment the dev team. Func is a great program.
Now to business: I have been evaluating Func for use at my employer
(Fermi Lab). We currently use an internally written program called
Rgang to do remote command execution. Rgang lets us submit remote
commands as follows:
$ rgang --rsh=ssh --skip 'root@srv49{1,2,9}'
'root@srv49{0-9},root@srv484' 'uptime'
root@srv490= 09:22:42 up 245 days, 14:53, 0 users, load average:
2.00, 2.00, 2.00
root@srv493= 09:22:41 up 348 days, 19:49, 0 users, load average:
1.10, 1.63, 1.85
root@srv494= 09:22:42 up 348 days, 19:49, 0 users, load average:
2.00, 2.01, 2.00
root@srv495= 09:22:42 up 404 days, 17:18, 0 users, load average:
2.02, 2.02, 2.00
root@srv496= 09:22:42 up 348 days, 19:47, 0 users, load average:
2.00, 2.02, 2.00
root@srv497= 09:22:42 up 264 days, 21:47, 0 users, load average:
0.00, 0.00, 0.00
root@srv498= 09:22:42 up 4 days, 18:41, 0 users, load average:
2.07, 2.05, 2.01
root@srv484= 09:22:42 up 348 days, 19:52, 0 users, load average:
2.08, 2.02, 2.00
Note two features:
1. The "--skip" feature lets us skip one or more machines using
globbing within the larger range
Sounds like a nice feature to add as an option.
2. The globbing supports {} Shell expansion, not just * wildcarding.
I have not been able to duplicate this globbing within Func. We can
see all kinds of potential uses for Func here to replace or complement
Rgang, but I'd sure like to see both of these globbing features
available in Func. The group feature (/etc/func/groups) is probably
not a good workaround because we are often running this on hundreds or
thousands of machines at a time on an adhoc basis.
Func uses fnmatch.
* matches everything
? matches any single character
[seq] matches any character in seq
[!seq] matches any char not in seq
Is there a way with the current Func to achieve similar functionality
in Func, or is this something the dev team would consider
implementing? By the way, anyone interested in rgang can look here:
http://fermitools.fnal.gov/abstracts/rgang/abstract.html
How about trying to add a patch to implement (A)? Does fnmatch meet
your needs as above?
Thanks very much,
Edward Simmonds
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