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- The saga of me and my new Mac: Conception and delivery
- As I age gracefully, or not, I find that I am challenged to learn new things and develop new skills. This is the very beginning of the saga of me and my new Mac. The thrill of learning how to cope with a single mouse button. I've...
- Blog posts 2007-12-20
- Extract text with awk
- awk causes brain damageIf you made it past the 1900s without awk just keep up the good work and DON'T look back. When bash and light use of sed don't cut it, jump straight to Perl. Ignore this advice and you will find yourself 3 levels deep in escaped...
- Discussion threads 2007-08-21
- Extract text with awk
- Like sed, awk can be used to transform text. Awk is both a general purpose text transformation tool and a programming language in its own right. Awk is especially useful in scripts and on the command-line.The best way to illustrate the power of awk is with examples, so let's go:$...
- Blog posts 2007-08-21
- DRAGON-BLOG
- blog rootProgramming in AWKI just want to share my knowledge on AWK programmingWindows users just back off ;)Later on I am going to add some AWK examples about monitoring, SNMP, and how to access MySQL from inside an AWK script among other things.
- Discussion threads 2005-12-01
- Disk usage monitoring
- your script fails for 2 reasons!You didn't grep out floppy and mine was reported as "-" which is not a number.Try these small changes typeset not needed either adding a grep -iv for floppy and using grep -E to only return numeric values.#!/bin/bashfs=`mount|egrep '^/dev'|grep -iv cdrom|grep -iv floppy|awk '{print $3}'`thresh=90warn=95for...
- Discussion threads 2005-10-04
- how do I get a Image file's resolution
- I am creating shell scripts for image archiving. I need to create a script that will determine and display a jpeg files resolution.Any assistance will be greatly appreciated.make sure you have gd, and php installed.then using php, write your scripts to use the gd libs / functions.( bash script or...
- Q&A 2005-08-16
- Master the Linux bash command line with these 10 shortcuts
- DOWNLOAD: 10 things you should know about the Linux bash shellhttp://techrepublic.com.com/5138-10877-5827301.htmlWhat is your favorite bash command; what trick, tip, tool, or shortcut is missing from this download? Do you prefer a different Linux shell?scripting and extra toolsI started to work with Unix Solaris and AIX before I took on...
- Discussion threads 2005-08-10
- Tech Tip: Use awk to format output
- Many Linux administrators use tools such as cat and grep to view or watch logs and other changeable files that contain data, but there are more robust commands, such as awk, that can perform more precisely formatted file actions. For instance, assume you run the...
- Technical articles 2003-12-08
- Manipulate text files easily with UNIX awk
- Awk provides a great mechanism for working with data files on a UNIX system. Here's a look at awk command structure, flow control, and data structures.You can apply the UNIX awk utility to myriad tasks, but one of its best uses is to process and manipulate formatted data files, such...
- Technical articles 2002-09-23
- Unravel the mystery of sed and awk
- If you work frequently with regular expressions, the UNIX text utilities sed and awk can make your life easier. In this article, we'll cover the basics of sed and awk and highlight their similarities and differences.If you work with regular expressions often, you should familiarize yourself with two useful UNIX...
- Technical articles 2002-07-24
- Effective Awk Programming: Text Processing and Pattern Matching - Advanced Features of Gawk
- This paper discusses advanced features in gawk. It's a bit of a "Grab bag" of items that are otherwise unrelated to each other. First, a command-line option allows gawk to recognize nondecimal numbers in input data, not just in awk programs. Next, two-way I/O, discussed briefly in earlier parts of...
- White papers 2001-05-01
- Effective Awk Programming: Text Processing and Pattern Matching - Internationalization With Gawk
- Once upon a time, computer makers wrote software that worked only in English. Eventually, hardware and software vendors noticed that if their systems worked in the native languages of non-English-speaking countries, they were able to sell more systems. As a result, internationalization and localization of programs and software systems became...
- White papers 2001-05-01
- Quick Tip: Use our AWK cheat sheets to quickly and easily manipulate UNIX data
- AWK cheat sheets can make working with data in UNIX a lot easier.AWK is a UNIX programming language that few techs have mastered. I know what you’re saying: “One more programming language to learn and never use.” Let me assure you that this is not the case. AWK may seem...
- Technical articles 2001-02-27
- Improve your scripting with AWK, part 3: Pre- and post-processing
- Richard Charrington concludes his three-part series on AWK, a very powerful scripting language utility. This time, Richard discusses pre- and post-processing and pattern matching. He also provides a few extended examples of how you can use AWK.In “Improve your scripting with AWK, part 1: An introduction to the pattern scanning...
- Technical articles 2000-05-05
- Improve your scripting with AWK, part 2: The language
- Richard Charrington continues his three-part series on AWK, a scripting language utility. This time, he discusses its language structure, its commands and statements, and the ways in which you can selectively process the input and format the output.In “Improve you scripting with AWK, part 1: An introduction to the pattern...
- Technical articles 2000-05-03
- Improve your scripting with AWK, part 1: An introduction to the pattern scanning and processing utility
- AWK is a very powerful scripting language utility, but what does it do? In this first installment of a three-part series, Richard Charrington provides a general overview of AWK and a description of how to implement AWK under Microsoft Windows.You can use NT’s built-in scripting language to create some very...
- Technical articles 2000-05-01
- AWK: The Linux Administrators' Wisdom Kit
- The AWK utility, with its own self-contained language, is one of the most powerful data processing engines in existence - not only in Linux, but anywhere. The limits to what can be done with this programming and data-manipulation language (named for the last initials of its creators, Alfred Aho, Peter...
- White papers
Additional Resources
- Binary File Search and Replace
- Does anyone know of a Linux command to do a batch search and replace in binary files? Sed, awk, etc. don't seem to have the ablility to edit binaries.I purchased a Windows product to do this manually, but I would prefer a Linux command so that I c
- Discussion threads 2006-11-06
- Keyboard shortcuts in bash and zsh
- Even though I prefer the most basic of shells, good help pointsBy the way. How about some tips for the mass's on some of the powerful shell commands/utilities.grep - search files for string - search piped input - searching for...
- Discussion threads 2007-04-27
- Grasping for Data
- The Linux operating system is a cup that overflows with files. There are files for configuration settings, text files, documentation files, log files - the list goes on and on. Quite often, those files contain information one needs to access to find important data. Although one can easily dump the...
- White papers
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