error while loading shared libraries: libnnz11.so: cannot open shared object while runing opatch

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#opatch auto -h
Executing /ora_grid/product/11.2.0.4/grid/perl/bin/perl /ora_grid/product/11.2.0.4/grid/OPatch/crs/patch11203.pl -h -paramfile /ora_grid/product/11.2.0.4/grid/crs/install/crsconfig_params
/ora_grid/product/11.2.0.4/grid/OPatch/crs/../../srvm/admin/getcrshome: error while loading shared libraries: libnnz11.so: cannot open shared object file: No such file or directory
Can't locate crspatch.pm in @INC (@INC contains: /ora_grid/product/11.2.0.4/grid/OPatch/crs /crs/install /ora_grid/product/11.2.0.4/grid/OPatch/crs /ora_grid/product/11.2.0.4/grid/perl/lib/5.10.0/x86_64-linux-thread-multi /ora_grid/product/11.2.0.4/grid/perl/lib/5.10.0 /ora_grid/product/11.2.0.4/grid/perl/lib/site_perl/5.10.0/x86_64-linux-thread-multi /ora_grid/product/11.2.0.4/grid/perl/lib/site_perl/5.10.0 /ora_grid/product/11.2.0.4/grid/perl/lib/5.10.0/x86_64-linux-thread-multi /ora_grid/product/11.2.0.4/grid/perl/lib/5.10.0/x86_64-linux-thread-multi /ora_grid/product/11.2.0.4/grid/perl/lib/5.10.0 /ora_grid/product/11.2.0.4/grid/perl/lib/site_perl/5.10.0/x86_64-linux-thread-multi /ora_grid/product/11.2.0.4/grid/perl/lib/site_perl/5.10.0 /ora_grid/product/11.2.0.4/grid/perl/lib/site_perl .) at /ora_grid/product/11.2.0.4/grid/OPatch/crs/patch11203.pl line 462.
BEGIN failed--compilation aborted at /ora_grid/product/11.2.0.4/grid/OPatch/crs/patch11203.pl line 462.

Issue:
oracle is not able to find the library files

Solution:
set LD_LIBRARY_PATH environment variable

#export LD_LIBRARY_PATH=/ora_grid/product/11.2.0.4/grid/lib

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