This is perl, v5.8.4 built for sun4-solaris-64int
(with 37 registered patches, see perl -V for more detail)

sqlplus:
file /opt/oracle/product/11g/db_1/bin/sqlplus
/opt/oracle/product/11g/db_1/bin/sqlplus:       ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped

file /scripts/DBD-Oracle-1.74/blib/arch/auto/DBD/Oracle/Oracle.so
/scripts/DBD-Oracle-1.74/blib/arch/auto/DBD/Oracle/Oracle.so:   ELF 32-bit MSB dynamic lib SPARC Version 1, dynamically linked, not stripped, no debugging information available

 file /opt/oracle/product/11g/db_1/lib/libclntsh.so.11.1
/opt/oracle/product/11g/db_1/lib/libclntsh.so.11.1:     ELF 64-bit MSB dynamic lib SPARCV9 Version 1, dynamically linked, not stripped