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Re^4: One liner to subtract by 2

by Anonymous Monk
on Jul 24, 2013 at 14:28 UTC ( #1046132=note: print w/replies, xml ) Need Help??


in reply to Re^3: One liner to subtract by 2
in thread One liner to subtract by 2

Thanks Guys

the header is on the first line of my file so I'm doing the following

perl -pe 's/(0-9{10})$/sprintf("%010d", $1-2)/e if $. ==1' TONYFILE.DAT

for some reason it's not changing the count...it's still 496

any idea what i'm missing here?

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Re^5: One liner to subtract by 2
by choroba (Chancellor) on Jul 24, 2013 at 14:30 UTC
    This outputs the new contents to the standard output. If you want to change the file, you have to add the -i flag:
    perl -i~ -pe ...
    لսႽ ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

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[Corion]: marto: Yeah, feels like that ;) You could set up the cronjob that auto-creates tickets :-))
[marto]: the ticketing system does not accept calls via email, nor has it a working API. It's tied into Active Directory for authentication and the Solaris boxes aren't on that domain
[Corion]: The one thing I haven't figured out a solution to is how to get an edge-trigger instead of sending an email every 5 minutes if the usage is above 90%. I want one mail when it goes over 90% but no more emails as long as it stays between 90% and 95%.
[Corion]: marto: Clever! ;)
[Corion]: You can only reach me by pager
[Corion]: Maybe the solution would be to launch a cron job every minute that takes two measurements a minute apart and sends a mail if the usage is below on the first and above threshold on the last measurement
[marto]: that's essentially it :)
[marto]: I think the long term solution would be to have sysadmins that do their job, so I don't have to do everything :P
[marto]: they already have an entire BMC patrol system, which they disabled, because it was sending out spurious messages. So rather than fix the issue, or even find out what it was, they turned it off. No messages, can't be any problems, right?
[Corion]: marto: But having open tickets / incidents increases the pressure on them ;) Of course, likely your contract / SLA specifies an upper limit for the number of incidents :-D

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