Package: lrzsz

"lrzsz" package binaries on CentOS:

/usr/bin/rb /usr/bin/rx /usr/bin/rz /usr/bin/sb /usr/bin/sx /usr/bin/sz

You may install this package on CentOS with yum install lrzsz

"lrzsz" package binaries on Debian:

/usr/bin/rb /usr/bin/rx /usr/bin/rz /usr/bin/sb /usr/bin/sx /usr/bin/sz

You may install this package on Debian with apt-get install lrzsz