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From: lwall@jato.Jpl.Nasa.Gov (Larry Wall)
Newsgroups: comp.unix.questions,alt.sys.sun
Subject: Re: crontab update
Message-ID: <2942@jato.Jpl.Nasa.Gov>
Date: 28 Feb 90 18:28:23 GMT
References: <855@edstip.EDS.COM> <24572@princeton.Princeton.EDU> <EMV.90Feb28121501@duby.math.lsa.umich.edu>
Reply-To: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Distribution: na
Organization: Jet Propulsion Laboratory, Pasadena, CA
Lines: 17

In article <EMV.90Feb28121501@duby.math.lsa.umich.edu> emv@math.lsa.umich.edu (Edward Vielmetti) writes:
: This is OK but -- I have a bunch of diskless machines with their
: crontab files all mounted via NFS from a server.  To update the whole
: batch I need to log in to every machine and run 'crontab' -- if
: I could automate the procedure somewhat I'd like to.

I suggest you check out the gsh program that comes with perl.  It (and gcp
and ged) will let you do things on sets of machines.

gsh all 'crontab -l >/tmp/crontmp'
ged all /tmp/crontmp
s/daily/weekly/;
^D
gsh all 'crontab /tmp/crontmp'

Larry Wall
lwall@jpl-devvax.jpl.nasa.gov