Package: rxvt-unicode

"rxvt-unicode" package binaries on CentOS:

/usr/bin/urxvtc /usr/bin/urxvt /usr/bin/urxvtd

You may install this package on CentOS with yum install rxvt-unicode

"rxvt-unicode" package binaries on Debian:

/usr/bin/rxvt-unicode /usr/bin/urxvtcd /usr/bin/urxvtc /usr/bin/urxvtd /usr/bin/urxvt

You may install this package on Debian with apt-get install rxvt-unicode