Parallel xargs

Disk usage utility for Unix, with an interesting visualization system.

Puppet lets you centrally manage every important aspect of your system using a cross-platform specification language. Puppet's simple declarative specification language provides powerful classing abilities for drawing out the similarities between hosts wh

Richard Stevens's 1992 book ``Advanced programming in the UNIX environment'' says that you can't safely mix select() or poll() with SIGCHLD (or other signals). The SIGCHLD might go off while select() is starting, too early to interrupt it, too late to cha

This program monitors the keyboard and echos each key pressed on the keyboard.
xspy takes advantage of an oversight in X Windows (R5 & R6) to find out about keypresses even in "secure mode". It works by polling the keyboard, by default every hundredth

Applications that process large volumes of data (such as, search engines, grid computing applications, data mining applications, etc.) require a backend infrastructure for storing data.

This document explains how to construct a compiler using lex and yacc. Lex and yacc are tools used to generate lexical analyzers and parsers. I assume you can program in C, and understand data structures such as linked-lists and trees.

MVMF is a package containing a growing number of utilities used in handling email. Some of these utilities make use of mvmf's scripting language, MFL, which combines an implementation of the Sieve filtering language and a C-like language in a powerful way

memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.

Jonathan Lemon's papers on FreeBSD network stack: syncookies, kqueue, hardware checksums, TCP

Looks to be 32-bit x86 only (boo!) but it does include Sun Studio 12.

It is recognized that the very existence of the notion of a super-user is a theoretical, and often practical, blemish on any protection scheme.

A bunch of docs and links on building highly scalable servers

Apparently on Solaris a process can't open more than 250 files or so using stdio. "Enterprise strength", indeed.

If you code in a C variant on Unix, you want this