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sleep until the operating system kernel determines that there are no readers left using the old structure, for example, in the Linux kernel, by using synchronize_rcu(), once awakened by the kernel, deallocate the old structure. So the structure is read concurrently with a thread copying in order to do an update, hence the name "read-copy update ...
AutoKey is a free, open-source scripting application for Linux. AutoKey allows the user to define hotkeys and trigger phrases [ 1 ] which expand to predefined text, automating frequent or repetitive tasks such as correcting typographical errors or common spelling mistakes and inserting boiler plate sections of text .
Gjiten (pronounced goo-jee-ten [3]) is a free software dictionary application developed for Linux operating systems, using the GNOME development libraries. It functions primarily as a Japanese–English dictionary tool meant to search EDICT dictionary files, but it has other features such as hand-drawn kanji recognition.
Crack's dictionary generation rule syntax was subsequently borrowed [12] and extended [13] by Solar Designer for John the Ripper. The dictionary generation software for Crack was subsequently reused by Muffett [ 14 ] to create CrackLib , a proactive password checking library that is bundled with Debian [ 15 ] and Red Hat Enterprise Linux ...
daemon: Operating systems often start daemons at boot time and serve the function of responding to network requests, hardware activity, or other programs by performing some task. Daemons can also configure hardware (like udevd on some Linux systems), run scheduled tasks (like cron), and perform a variety of other tasks.
Dividing the responsibility for authenticating a file or image ensures no single hacker can compromise the system. It also helps to ensure that keys used to perform a sensitive action can be stored in a secure, offline manner. Even if one party—or the repository itself—is compromised, the number of projects affected will be limited. [14]
The book covers topics related to the Linux operating system and operating systems in general. It chronicles the history of Unix and how it led to the creation of Linux. The book provides samples of code written in C, and learning exercises at the end of chapters.
Traditionally, the operating system kernel was responsible for providing an abstract interface to the hardware the system ran on. Applications used the system call interface, or performed file I/O on device nodes in order to communicate with hardware through these abstractions. This sufficed for the simple hardware of early desktop computing.