Task Manager for Linux

New to Linux and missing a graphical task manager like the one in Windows?

Try Htop (Linux Process Monitoring)

Htop is an interactive and real time process monitoring application for Linux. It shows complete list of processes running and easy to use for normal tasks.

For RHEL, CentOS & Fedora 64-bit OS
## For RHEL 5, CentOS 5 & Fedora ##
# wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.x86_64.rpm
# rpm -ihv rpmforge-release*.rf.x86_64.rpm

## For RHEL 6 and CentOS 6
# wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
# rpm -ihv rpmforge-release*.rf.x86_64.rpm

Note: update above command to use the latest version of RPMforge.

Once RPMforge repository is installed. Now start installation with yum command.
# yum install htop

For more info, visit:
http://www.tecmint.com/install-htop-linux-process-monitoring-for-rhel-centos-fedora/
http://linuxlookup.com/howto/view_running_processes_linux_system

You can always see running processing in the console using the following command:
ps aux | less

The pstree command is similar to ps in that it can be used to show all of the processes on the system along with their PIDs. However, it differs in that it presents output in a tree structure that shows how processes are related to each other and in that it provides less detailed information about each process than does ps