Package: psmisc

"psmisc" package binaries on CentOS:

/sbin/fuser /usr/bin/killall /usr/bin/peekfd /usr/bin/pstree /usr/bin/pstree.x11

You may install this package on CentOS with yum install psmisc

"psmisc" package binaries on Debian:

/bin/fuser /usr/bin/killall /usr/bin/peekfd /usr/bin/prtstat /usr/bin/pstree /usr/bin/pstree.x11

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