Livro Expressões Regulares - Uma Abordagem Divertida :: aurelio.net
Ficha Conquistas Resenha As Expressões Regulares podem ser utilizadas em diversos aplicativos, como editores de textos, leitores de e-mail e linguagens de programação, no UNIX, Linux, Windows e Mac. Qualquer usuário de computador pode usufruir dos seus benefícios. Profissionais que manipulam texto e dados economizarão horas de serviço braçal: escritores, revisores, tradutores, programadores e administradores de sistema. Em uma abordagem incomum de encontrar em livros técnicos, as explicações didáticas e divertidas tornam prazerosa a leitura de um tema tão árido e abstrato. $ diff -u guia livro Formato novo O antigo formato "de bolso" (10,5x23 cm) é prático para carregar, mas torna a leitura cansativa, pois as folhas são estreitas e o texto tem que ficar espremido, usando letras pequenas e pouco espaçamento. Conteúdo solto Com o espaço ampliado, agora o conteúdo pôde se expandir e ficar mais à vontade. Cara de livro Ilustrações! Conteúdo reorganizado Seções novas Conteúdo atualizado Conteúdo novo
Swap
Dieser Artikel wurde für die folgenden Ubuntu-Versionen getestet: Dieser Artikel ist größtenteils für alle Ubuntu-Versionen gültig. Zum Verständnis dieses Artikels sind folgende Seiten hilfreich: Linux (wie auch so gut wie alle anderen Betriebssysteme) versucht, die Betriebssystemkomponenten, aktuell benötigte Programmdaten etc. möglichst komplett im RAM (Arbeitsspeicher) zu halten, da der Zugriff auf das RAM deutlich schneller ist als auf Datenträger wie Festplatte, CD, USB-Stick usw. Nun kann es aber vorkommen, dass das komplette RAM voll ist, weil z.B. Nutzt ein System den Swap intensiv, so wird das System durch die häufigen Plattenzugriffe deutlich langsamer und fühlt sich „zäh“ an. Swapgröße Auf modernen Computern mit mehreren Gigabyte RAM oder mehr lagern die Systeme kaum mehr aus (es sei denn, man bearbeitet sehr große Audiodateien, mehrere große Bilder mit GIMP oder hat andere extrem große Dokumente geöffnet etc.). Swap anlegen Swap-Partition nachträglich erstellen Achtung! ausführen.
regular expression - grep: Trailing backslash
MacPorts
Constructivist Model for Learning
The behaviorist theory popularized by B.F. Skinner still drives much of the practice of science education. For more than a quarter century, schools and teachers have been creating behavioral goals and objectives. Since the late 1980s, however, researchers have been building an understanding of learning that grows out of cognitive and developmental psychology. All knowledge is constructed through a process of reflective abstraction. The constructivist classroom presents the learner with opportunities to build on prior knowledge and understanding to construct new knowledge and understanding from authentic experience. Contrast this approach with the typical behaviorist classroom, where students are passively involved in receiving all necessary critical information from the teacher and the textbook. info@ncrel.org Copyright © North Central Regional Educational Laboratory.
Sed
History of sed[edit] GNU sed added several new features, of which the best-known is in-place editing of files. Super-sed is an extended version of sed that includes regular expressions compatible with Perl. Another variant of sed is minised, originally reverse-engineered from 4.1BSD sed by Eric S. Mode of operation[edit] sed is a line-oriented text processing utility: it reads text, line by line, from an input stream or file, into an internal buffer called the pattern space. The sed script can either be specified on the command line (-e option) or read from a separate file (-f option). 10q will print the first 10 lines of input, then stop. Usage[edit] Substitution command[edit] The following example shows a typical, and the most common, use of sed, for substitution; this usage was indeed the original motivation for sed:[3] sed 's/regexp/replacement/g' inputFileName > outputFileName In some versions of sed, the expression must be preceded by a -e to indicate that an expression follows.
Find & Replace across multiple files in linux | Rushi's Ramblings
Here’s the post on my new blog – Below is an older version of the post: I was trying to find a solution todo a find & replace across multiple files which was purely command line based. There are plenty of scripts out there which will accomplish this but I needed a single line command. find . It looks a bit complicated but its quite simple. find . This pretty much covers the core of the find & replace command. Resources: Like this: Like Loading...
Unix/Linux "find" Command Tutorial
©2002–2013 by Wayne Pollock, Tampa Florida USA. All rights reserved. The find command is used to locate files on a Unix or Linux system. find will search any set of directories you specify for files that match the supplied search criteria. You can search for files by name, owner, group, type, permissions, date, and other criteria. The search is recursive in that it will search all subdirectories too. The syntax looks like this: find where-to-look criteria what-to-do All arguments to find are optional, and there are defaults for all parts. For example: find will display the pathnames of all files in the current directory and all subdirectories. find . do the exact same thing. find / -name foo This will search the whole system for any files named foo and display their pathnames. /home/wpollock/foo /home/ua02/foo /tmp/foo If find doesn't locate any matching files, it produces no output. The above example said to search the whole system, by specifying the root directory (“/”) to search. find .
Command-line Fu < The best UNIX commands on the web
CompTIA :: Pearson VUE
CompTIA is offering our candidates online certification testing Online testing is ideal because candidates can: Test anywhere – especially from the security and privacy of their own home. Test anytime – online testing can be conducted 24/7, schedule your exam whenever time permits, avoiding competing priorities or conflicts. Learn more Why CompTIA Certifications? CompTIA vendor neutral certifications are the starting point for a career in IT. Wondering what it’s like to take a CompTIA Exam? CompTIA certification updates and retirements Planning to earn or currently have a CompTIA certification? CompTIA certification exam policies Stay informed. Buying an exam voucher or training materials CompTIA Store - is for all users, including CompTIA members, partners and individual candidates. Scheduling your exam To schedule, reschedule or cancel your exam, use the Sign In and Create account links on this page. Sharing your Certification status CompTIA Membership
SED - Portal brasileiro do Stream EDitor do UNIX
#!/bin/sed -fn /^Bem-vind[oa]/!{ /E/s/ta é a /minha pá/g;/i/n;/a/ s/o//;b re; /o Se/d sed primeiro, dep;/oi/s o resto ;P } $!N Seja bem-vindo(a) ao portal do Sed. Acompanhe aqui vários artigos sobre o Sed, escritos em português. Lá no meu blog eu contei a minha história com o Sed, que começou em 1997 e mudou minha vida, culminando com a escrita de um livro sobre Expressões Regulares. Lista de discussão Você ainda não assina a sed-br? Your book is on the table? Documentação Em português Alfabeto do sed por Aurelio Marinho Jargas Uma cola rápida de todos os comandos do sed, em ordem alfabética. Sed HOWTO por Aurelio Marinho Jargas Este documento se propõe a ser um tutorial e um guia de consulta de Sed ao mesmo tempo. Dominando o Sed por Aurelio Marinho Jargas Um livro inacabado sobre Sed, disponível gratuitamente em PDF. Sed 1liners por Ricardo Sartori Comandos Sed de apenas 1 linha, prontos para copiar e colar. Só Sed por Thobias Salazar Trevisan Usando o sed para contar por Thobias Salazar Trevisan
