"_" in variable names

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# 1  
Old 07-28-2009
"_" in variable names

Hello Experts,

I have written a UNIX shell which spans about 400 lines. I have tried to manage the flow as far as possible using functions. In the main shell flow, there are certain variables, not many really - around 10. These variables would obviously act as globals.
Here I need some advice - would it be a good thing to prefix these variables with an underscore "_" to have better readability? or am I just thinking of something unnecessary?

# 2  
Old 07-28-2009
there is no problem in using _ inyour variable names :-)
# 3  
Old 07-28-2009

I mean, I would just like to use them as a "notation" for variables that are available to every scope; outside any function.

I knew you would be replying, saw you online Smilie

Thank You.


Last edited by hkansal; 07-28-2009 at 06:26 PM..
# 4  
Old 07-28-2009
My personal rule of thumb: everything global in all caps, everything loop/function local in camel case (starting lower case), everything temporary lower case.

But in general, it's more of a subjective thing, except if you've got a developers document around on how such things should be handled.
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