/usr/bin/4channels
/usr/bin/dcraw_emu
/usr/bin/dcraw_half
/usr/bin/half_mt
/usr/bin/mem_image
/usr/bin/multirender_test
/usr/bin/postprocessing_benchmark
/usr/bin/raw-identify
/usr/bin/simple_dcraw
/usr/bin/unprocessed_raw
You may install this package on CentOS with
yum
install LibRaw-samples