Re: enviornment variables

[Olexiy Avramchenko <olexiy ctech cn ua>]

Abhishek Misra wrote:
> Hello,
>
> as recomended i tried to set the following enviornment variables.
>
> CPPFLAGS
> LDFLAGS
> PKG_CONFIG_PATH
> LD_LIBRARY_PATH
>
> to my surprise i get error st. command not found
>
> on running printenv or env
> the list of variavle,value that i get does not include any of these
>
> on running env CPPFLAGS="xyz"
> this variable,value does gets added to the end of the list 
> but on running env again , it is again missing from the list
>
> man env says run COMMAND after setting the value 
> this too is not improving the situation
>
> please let me know where could the problem lie.
The answer is: "Your variable is not exported, so you see it in the 
shell session you started with 'env CPPFLAGS="xyz"' and it gets lost 
when the session ends". But you have to read some docs to understand this.

Please read the following document:
http://www.tldp.org/LDP/Bash-Beginners-Guide/html/index.html
Especially this chapter/section (this is about variables):
http://www.tldp.org/LDP/Bash-Beginners-Guide/html/chap_03.html
http://www.tldp.org/LDP/Bash-Beginners-Guide/html/sect_03_02.html
And than this (this is about where variables need to be put to):
http://www.tldp.org/LDP/Bash-Beginners-Guide/html/sect_03_01.html

If you use the different shell, please spend 1 minute to find 
documentation with google.

	Olexiy