perl or shell for ip manipulation

Discussion in 'Perl' started by Dave, Dec 22, 2007.

  1. Dave

    Dave Guest

    I'm wanting to develope a script for ip change notification. Since my
    box doesn't change cleanly, i'd like to run this script from cron say every
    30 minutes. First thing it does is checks the IP, if it's the same as 30
    minutes ago it pings one of about ten sites from a list in random order. If
    that works, everything is well exit. If not meaning the ip test reports the
    same as 30 minutes ago but pinging that list returns nothing then run three
    commands, obtain the new ip, save it, and send an email to a designated
    I'm not sure if i should do this in shell or perl, as of right now i
    have the ip address printing, but i believe i'd have to do something with
    saving state between script loads, this i've never done. If anyone has any
    suggestions i'd appreciate them.
    Dave, Dec 22, 2007
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  2. The only non-volatile storage in a computer system are files. So just
    write that IP address to a file and read its content again in the next


    PS: this single newsgroup has been replaced by the whole comp.lang.perl.*
    hierarchy about a decade ago and is no longer maintained
    Jürgen Exner, Dec 22, 2007
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