postgres@africa:/usr/lib/postgresql/8.2/bin$  find /usr/lib/postgresql/
/usr/lib/postgresql/
/usr/lib/postgresql/9.1
/usr/lib/postgresql/9.1/bin
/usr/lib/postgresql/9.1/bin/pg_dumpall
/usr/lib/postgresql/9.1/bin/dropuser
/usr/lib/postgresql/9.1/bin/clusterdb
/usr/lib/postgresql/9.1/bin/dropdb
/usr/lib/postgresql/9.1/bin/pg_restore
/usr/lib/postgresql/9.1/bin/createlang
/usr/lib/postgresql/9.1/bin/reindexdb
/usr/lib/postgresql/9.1/bin/pg_basebackup
/usr/lib/postgresql/9.1/bin/createuser
/usr/lib/postgresql/9.1/bin/droplang
/usr/lib/postgresql/9.1/bin/vacuumdb
/usr/lib/postgresql/9.1/bin/createdb
/usr/lib/postgresql/9.1/bin/pg_dump
/usr/lib/postgresql/9.1/bin/psql
/usr/lib/postgresql/8.2
/usr/lib/postgresql/8.2/bin
/usr/lib/postgresql/8.2/bin/pg_dumpall
/usr/lib/postgresql/8.2/bin/dropuser
/usr/lib/postgresql/8.2/bin/clusterdb
/usr/lib/postgresql/8.2/bin/dropdb
/usr/lib/postgresql/8.2/bin/pg_restore
/usr/lib/postgresql/8.2/bin/createlang
/usr/lib/postgresql/8.2/bin/reindexdb
/usr/lib/postgresql/8.2/bin/createuser
/usr/lib/postgresql/8.2/bin/droplang
/usr/lib/postgresql/8.2/bin/vacuumdb
/usr/lib/postgresql/8.2/bin/createdb
/usr/lib/postgresql/8.2/bin/pg_dump
/usr/lib/postgresql/8.2/bin/psql