On 6/20/2017 1:27 AM, Pete Biggs wrote: >> I can figure out some simple scripting to turn the maillog entries >> into times since the epoch, or other formats, if needed, but I have >> no experience with the various graphing tools availabe, or even >> what (or where) they are. >> > If you are talking about scripting graphs, then Gnuplot is what you > need - it's in the core centos distro I think. > > If you want a dedicated gui graphing application, then you can't go far > wrong with Grace - it's in EPEL. I've used it for producing publication > quality plots but it's equally capable of dealing with everyday > graphing. The native save file format is simple and plain text, so it's > quite easy to generate the files using a script which can then be read > straight in to grace and will have correct axes, lables, etc. another tool i've used for creating various sorts of graphs is Gnu Octave. this is a matlab replacement, and if you can import a bunch of numbers, you can graph them 8 ways from sideways. -- john r pierce, recycling bits in santa cruz