963 shaares
To provide an insight into the quality of software that is available, we have compiled a list of 5 useful Linux logfile viewers. Hopefully, there will be something of interest for anyone needing to examine and process logfile data.
Now, let's explore the 5 logfile viewers at hand. For each title we have compiled its own portal page, a full description with an in-depth analysis of its features, a screenshot of the software in action, together with links to relevant resources and reviews.
Now, let's explore the 5 logfile viewers at hand. For each title we have compiled its own portal page, a full description with an in-depth analysis of its features, a screenshot of the software in action, together with links to relevant resources and reviews.
MultiTail lets you view one or multiple files like the original tail program. The difference is that it creates multiple windows on your console (with ncurses). Merging of 2 or even more logfiles is possible. It can also use colors while displaying the logfiles (through regular expressions), for faster recognition of what is important and what not. It can also filter lines (again with regular expressions). It has interactive menus for editing given regular expressions and deleting and adding windows. One can also have windows with the output of shell scripts and other software. When viewing the output of external software, MultiTail can mimic the functionality of tools like 'watch' and such.
This guide aims to aid people interested in learning to work with BASH. It aspires to teach good practice techniques for using BASH, and writing simple scripts.
This guide is targeted at beginning users. It assumes no advanced knowledge -- just the ability to login to a Unix-like system and open a command-line (terminal) interface. It will help if you know how to use a text editor; we will not be covering editors, nor do we endorse any particular editor choice. Familiarity with the fundamental Unix tool set, or with other programming languages or programming concepts, is not required, but those who have such knowledge may understand some of the examples more quickly.
This guide is targeted at beginning users. It assumes no advanced knowledge -- just the ability to login to a Unix-like system and open a command-line (terminal) interface. It will help if you know how to use a text editor; we will not be covering editors, nor do we endorse any particular editor choice. Familiarity with the fundamental Unix tool set, or with other programming languages or programming concepts, is not required, but those who have such knowledge may understand some of the examples more quickly.
BASH offers three different kinds of pattern matching. Pattern matching serves two roles in the shell: selecting filenames within a directory, or determining whether a string conforms to a desired format. On the command line you will mostly use globs. These are a fairly straight-forward form of patterns that can easily be used to match a range of files, or to check variables against simple rules. The second type of pattern matching involves extended globs, which allow more complicated expressions than regular globs.
How can I use a logical AND/OR/NOT in a shell pattern (glob)?
rm -- *.bak *.old
rm -- *.{bak,old}
rm -- *.bak *.old
rm -- *.{bak,old}
pattern matching (also for bash)
movie thumbnailer (mtn) -- saves thumbnails (screenshots) of movie or video files to jpeg files. It uses FFmpeg's libavcodec as its engine, so it supports all popular codecs, e.g. divx h264 mpeg1 mpeg2 mp4 vc1 wmv xvid, and formats, e.g. .3gp .avi .dat .mkv .wmv. mtn is open source software. It should run on all operating systems which have gcc, FFmpeg, and GD, for example, Linux and Windows.
Lesser known DNS tools and BIND tricks
AH02559: The SSLCertificateChainFile directive (/etc/httpd/conf.d/ssl.conf:133) is deprecated, SSLCertificateFile should be used instead
Attribuer une signature numérique à vos documents, mails et projets secrets ? Chiffrer (= Crypter, mot franglais incorrect) un document encore plus secret, ou alors des photos qui montrent l'existence de votre frère jumeau caché ? Ou simplement vos recettes de cuisine ? La parano's way of life n'est plus réservée aux pro's de la programmation machine à chaud.
En effet GPG (lisez : GNU Privacy Guard) est un outil multi-fonctions, libre et gratuit, qui permet de signer et de chiffrer à peu près tout ce qui se présente sous forme numérique (tout ce qui a un bit, si vous me passez l'expression).
Je vous propose un petit didacticiel “in the Molière's language”, pour être un pro du chiffrement, impressionner vos collègues et vous faire aimer de votre boss sur vos incroyables et nouvelles connaissances sur la certification de données.
En effet GPG (lisez : GNU Privacy Guard) est un outil multi-fonctions, libre et gratuit, qui permet de signer et de chiffrer à peu près tout ce qui se présente sous forme numérique (tout ce qui a un bit, si vous me passez l'expression).
Je vous propose un petit didacticiel “in the Molière's language”, pour être un pro du chiffrement, impressionner vos collègues et vous faire aimer de votre boss sur vos incroyables et nouvelles connaissances sur la certification de données.