How to set the environmental variable LD_LIBRARY_PATH in linux

Question

I have first executed the command: export 

LD_LIBRARY_PATH=/usr/local/lib

Then I have opened .bash_profile file: vi ~/.bash_profile. In this file, I put:

LD_LIBRARY_PATH=/usr/local/lib

export LD_LIBRARY_PATH

Then if the terminal is closed and restarted, 

echo $LD_LIBRARY_PATH 

Typing displays no result. How to set the path permanently?

Answer 1

You need to add more details about your distribution, for example under Ubuntu your right way to do this is to add the custom .conf file to /etc/ld.so.conf.d, for example

sudo gedit /etc/ld.so.conf.d/randomLibs.conf

Inside a file, you are supposed to write a complete path to a directory that contains all these libraries that you wish to add to a system, for example

/home/linux/myLocalLibs

remember to add only this path to a dir, not a full path for this file, all the libs inside that path will be automatically indexed.

Save and run the sudo ldconfig to update the system with these libs.

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