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Operating Systems Linux Gentoo cpu%/mem% usage, scripting, dzen2: howto learn bash the hard way Post 302221485 by broli on Monday 4th of August 2008 02:07:35 PM
Old 08-04-2008
Quote:
Originally Posted by era
Modern versions of awk have a sort command. I'm not sure if it was included even in the original awk.
im on gentoo here, so is the latest stable gawk (sorry, my bad, for not telling you earlier)

Quote:
Originally Posted by era
Certainly, but I'm not really suggesting you move to Perl just for this. There are really two schools of thought on this; skip awk, and only learn Perl; or move to Perl if you run into situations which awk cannot handle comfortably. If you need to process binary data or very large data sets, Perl was designed to overcome the limitations awk have in those areas.
the very reason i started with linux, the very reason im still with linux, is that there is something to learn, teh chalenge, and the satisfaction of personal growth.
"moving to perl" doesn't mean anything "bad"
i will finish this with bash (because i wont let this sucker win). and after that, i will try to make it in perl. just because i can (or rather "just because i still dont know how" )

Quote:
Originally Posted by era
But the requirements you have shown so far should be easy to handle in awk; it's just not clear from reading the code in which direction you want the script to grow, and/or I was too lazy to rewrite it all.
there is only one more thing i want from this script. show the total of memory used, and the total of cpu used, while keeping it light

for the cpu. i had some doubts, but i have decided to show the iddle percentage. this is a personal thing, i will use it, so if i want/know iddle%, thats what im gonna get :P

for the memory, i have been researching.
i was using wmmem, so i went and read the code to and read how it calculated. i came up with the math behind it.
((total - cache - buffer) * 100 ) / total
now my problem is getting those 3 from top

unfortunately, all my work is in my personal laptop (at home), and usually, i dont spent time in this during the week, so i cant give you any particulars on what i have done so far to retrieve that data
i dont ask you to rewrite my script. actually i would hate that.
as i said, i want to solve this, or at least try

thanks for the great help so far !
 

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LIBBASH(7)							  libbash Manual							LIBBASH(7)

NAME
libbash -- A bash shared libraries package. DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may want to load and use in scripts of your own. It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries. Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded using ldbash(1) must answer 4 requirments: 1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash). 2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library exports. I.e. all the function that will be usable after loading that library will be listed in that line. 3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are required for our library. I.e. every bash library that is in use in our bash library must be listed there. 4. The library must be listed (For more information, see ldbashconfig(8)). Basic guidelines for writing library of your own: 1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions. 2. Try to declare all variables intended for internal use as local. 3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with: __<library_name>_ For example, internal function myfoosort of hashstash library should be named as __hashstash_myfoosort This helps to avoid conflicts in global name space when using libraries that come from different vendors. 4. See html manual for full version of this guide. AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <ril@ran4.net> SEE ALSO
ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1) Linux Epoch Linux
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