The Psmisc package contains programs for displaying information on processes. &buildtime; &psmisc-time; &diskspace; &psmisc-compsize; &aa-psmisc-down; &aa-psmisc-dep;   Prepare Psmisc for compilation: ./configure --prefix=/usr --exec-prefix=/ The meaning of the configure option: --exec-prefix=/: This causes the binaries to be installed in /bin and not in /usr/bin. As the Psmisc programs are often used in bootscripts, they should be available also when the /usr filesystem isn't mounted. Compile the package: make And install it: make install There is no reason for the pstree and pstree.x11 programs to reside in /bin. We therefore move them to /usr/bin. Also, there is no need for pstree.x11 to exist as a separate program. We therefore make it a symbolic link to pstree: mv /bin/pstree* /usr/bin ln -sf pstree /usr/bin/pstree.x11 By default Psmisc's pidof program isn't installed. Generally, this isn't a problem because we later install the Sysvinit package, which provides a better pidof program. But if you're not going to use Sysvinit, you should complete the installation of Psmisc by creating the following symlink: ln -s killall /bin/pidof &aa-psmisc-shortdesc; &aa-psmisc-desc;