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Top Forums Shell Programming and Scripting Script counting instances of software running on a machine Post 302622061 by jim mcnamara on Wednesday 11th of April 2012 01:14:55 PM
Old 04-11-2012
By "running" I think you mean the machine is licensed for something and could run it. But you get false negatives.

If your company installed everything then you have a very high probability that there is commonality in naming conventions. The default WebLogic owner uid is wls, so if there is a WLS user, apache has to be there as well. Directory names will be there, like for oracle certain lower level names like libclntsh will only exist on a box that can run oracle as either a client or a server, or, /var/opt/oracle/oratab will have entries that end in :Y os :S for boxes that actively run an orcacle database or a standby and so are oracle servers.

Therefore - you need to logically create a set of queries a means of determining, yes this has jboss or not. And the method does not always depend on what users are running but usually depends on what exists in /etc/passwd, /etc/group, /var/opt/... etc.

This is like one of those puzzles where you work out what has to exist by a small numbers of observations. The most dependable are: names of certain files, usernames, some group names, if you are lucky sometimes a daemon with a fixed name will be running full time.
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libcurl(3)						      libcurl easy interface							libcurl(3)

NAME
libcurl-easy - easy interface overview DESCRIPTION
When using libcurl's "easy" interface you init your session and get a handle (often referred to as an "easy handle"), which you use as input to the easy interface functions you use. Use curl_easy_init(3) to get the handle. You continue by setting all the options you want in the upcoming transfer, the most important among them is the URL itself (you can't transfer anything without a specified URL as you may have figured out yourself). You might want to set some callbacks as well that will be called from the library when data is available etc. curl_easy_setopt(3) is used for all this. When all is setup, you tell libcurl to perform the transfer using curl_easy_perform(3). It will then do the entire operation and won't return until it is done (successfully or not). After the transfer has been made, you can set new options and make another transfer, or if you're done, cleanup the session by calling curl_easy_cleanup(3). If you want persistent connections, you don't cleanup immediately, but instead run ahead and perform other transfers using the same easy handle. libcurl 7.10.7 12 Aug 2003 libcurl(3)
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