How to create symbolic links for libraries ld library path
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creating symbolic links for libraries and adding them to the `ld_library_path` allows you to specify additional directories to search for shared libraries when running executables. this can be useful when you want to use custom or non-standard libraries in your programs without permanently installing them in the system directories. here's a step-by-step tutorial on how to create symbolic links for libraries and add them to the `ld_library_path` environment variable:
step 1: identify the library you want to use and create a symbolic link to it
replace `/path/to/your/library.so` with the actual path to the library file you want to link and `/path/to/symbolic/link/libcustom.so` with the desired path and name for the symbolic link.
step 2: add the directory containing the symbolic link to the `ld_library_path` environment variable
replace `/path/to/symbolic/link` with the directory containing your symbolic link. you can add this line to your `.bashrc` or `.bash_profile` file to make the change persistent across terminal sessions.
step 3: verify that the symbolic link and `ld_library_path` are set correctly
the `echo $ld_library_path` command will display the current value of `ld_library_path` to confirm that the directory containing your symbolic link is included. the `ls -l /path/to/symbolic/link` command will show the symbolic link you created.
step 4: compile and run your program that uses the custom library
replace `myprogram`, `myprogram.c`, and `-lcustom` with your actual program name, source file, and library linking flag.
by following these steps, you can create symbolic links for libraries and add them to the `ld_library_path` environment variable to use custom or non-standard libraries in your programs.
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