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Puppet (configuration management)
Puppet is an open source systems management tool for centralizing and automating configuration management. Definition
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Heartbeat
Heartbeat is a program that runs specialized scripts automatically whenever a system is initialized or rebooted. Originally designed for two-node Linux-based clusters, Heartbeat is extensible to larger configurations... (Continued) Definition
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tty command
A tty command in Linux and other Unix-like operating systems is a shell command that can be entered interactively or as part of a script to determine whether the output for the script is a terminal (that is, to an interactive user) or to some other ... Definition
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script
In computer programming, a script is a program or sequence of instructions that is interpreted or carried out by another program rather than by the computer processor (as a compiled program is). Definition