GREG Supercomputers source: http://www.top500.org/overtime/list/32/os Distro count: http://futurist.se/gldt/ Number of devs & commits: http://www.linuxfoundation.org/docs/lf_linux_kernel_development_2010.pdf covers 2.6.11 though 2.6.35 1 commit every 3 minutes, 24/7/365
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LANCE Fedora – RHEL – rpm based. 18mo. Release cycle for fedora, X years of support for each major RHEL version Debian – Ubuntu – deb based. Debian is community based, Ubuntu is based off of debian, targets ease of use for end-user. Has short and long-term supported releases Gentoo – ebuild based, much more customizable, but can be more difficult to deploy/maintain
LANCE Fedora – RHEL – rpm based. 18mo. Release cycle for fedora, X years of support for each major RHEL version Debian – Ubuntu – deb based. Debian is community based, Ubuntu is based off of debian, targets ease of use for end-user. Has short and long-term supported releases Gentoo – ebuild based, much more customizable, but can be more difficult to deploy/maintain
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GREG Bash is the default shell on Linux machines Explain architecture: built in commands vs. external binaries Quick overview of filesystem, ie. Full vs. relative paths
GREG Demo commands: Directory movement and file manipulation: Cd, pwd, ls, rm, mv, touch User info: id, whoami, w Pipes, redirection (pipe.txt, redirect.txt) Special variables: $?, $$ (pid.sh), !!, !*, !$
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