Products related to Shell:
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Shell Programming in Unix, Linux and OS X
Shell Programming in Unix, Linux and OS X is a thoroughly updated revision of Kochan and Wood’s classic Unix Shell Programming tutorial.Following the methodology of the original text, the book focuses on the POSIX standard shell, and teaches you how to develop programs in this useful programming environment, taking full advantage of the underlying power of Unix and Unix-like operating systems. After a quick review of Unix utilities, the book’s authors take you step-by-step through the process of building shell scripts, debugging them, and understanding how they work within the shell’s environment.All major features of the shell are covered, and the large number of practical examples make it easy for you to build shell scripts for your particular applications.The book also describes the major features of the Korn and Bash shells. Learn how to... Take advantage of the many utilities provided in the Unix system Write powerful shell scripts Use the shell’s built-in decision-making and looping constructs Use the shell’s powerful quoting mechanisms Make the most of the shell’s built-in history and command editing capabilities Use regular expressions with Unix commands Take advantage of the special features of the Korn and Bash shells Identify the major differences between versions of the shell language Customize the way your Unix system responds to you Set up your shell environment Make use of functions Debug scripts Contents at a Glance 1 A Quick Review of the Basics 2 What Is the Shell? 3 Tools of the Trade 4 And Away We Go 5 Can I Quote You on That? 6 Passing Arguments 7 Decisions, Decisions 8 ‘Round and ‘Round She Goes 9 Reading and Printing Data 10 Your Environment 11 More on Parameters 12 Loose Ends 13 Rolo Revisited 14 Interactive and Nonstandard Shell Features A Shell Summary B For More Information
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Pro Bash Programming, Second Edition : Scripting the GNU/Linux Shell
Pro Bash Programming teaches you how to effectively utilize the Bash shell in your programming.The Bash shell is a complete programming language, not merely a glue to combine external Linux commands.By taking full advantage of Shell internals, Shell programs can perform as snappily as utilities written in C or other compiled languages. And you will see how, without assuming Unix lore, you can write professional Bash 4.3 programs through standard programming techniques. This second edition has updated for Bash 4.3, and many scripts have been rewritten to make them more idiomatically Bash, taking better advantage of features specific to Bash.It is easy to read, understand, and will teach you how to get to grips with Bash programming without drowning you in pages and pages of syntax.Using this book you will be able to use the shell efficiently, make scripts run faster using expansion and external commands, and understand how to overcome many common mistakes that cause scripts to fail.This book is perfect for all beginning Linux and Unix system administrators who want to be in full control of their systems, and really get to grips with Bash programming.
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Practical Guide to Linux Commands, Editors, and Shell Programming, A
The Most Useful Tutorial and Reference, with Hundreds of High-Quality Examples for Every Popular Linux Distribution “First Sobell taught people how to use Linux . . . now he teaches you the power of Linux. A must-have book for anyone who wants to take Linux to the next level.” –Jon “maddog” Hall, Executive Director, Linux International Discover the Power of Linux--Covers macOS, too! Learn from hundreds of realistic, high-quality examples, and become a true command-line guruCovers MariaDB, DNF, and Python 3300+ page reference section covers 102 utilities, including macOS commands For use with all popular versions of Linux, including Ubuntu,™ Fedora,™ openSUSE,™ Red Hat,® Debian, Mageia, Mint, Arch, CentOS, and macOS Linux is today's dominant Internet server platform.System administrators and Web developers need deep Linux fluency, including expert knowledge of shells and the command line.This is the only guide with everything you need to achieve that level of Linux mastery.Renowned Linux expert Mark Sobell has brought together comprehensive, insightful guidance on the tools sysadmins, developers, and power users need most, and has created an outstanding day-to-day reference, updated with assistance from new coauthor Matthew Helmke. This title is 100 percent distribution and release agnostic.Packed with hundreds of high-quality, realistic examples, it presents Linux from the ground up: the clearest explanations and most useful information about everything from filesystems to shells, editors to utilities, and programming tools to regular expressions. Use a Mac? You'll find coverage of the macOS command line, including macOS-only tools and utilities that other Linux/UNIX titles ignore. A Practical Guide to Linux® Commands, Editors, and Shell Programming, Fourth Edition, is the only guide to deliver A MariaDB chapter to get you started with this ubiquitous relational database management system (RDBMS)A masterful introduction to Python for system administrators and power usersIn-depth coverage of the bash and tcsh shells, including a complete discussion of environment, inheritance, and process locality, plus coverage of basic and advanced shell programmingPractical explanations of core utilities, from aspell to xargs, including printf and sshfs/curlftpfs, PLUS macOS–specific utilities from ditto to SetFileExpert guidance on automating remote backups using rsyncDozens of system security tips, including step-by-step walkthroughs of implementing secure communications using ssh and scpTips and tricks for customizing the shell, including step values, sequence expressions, the eval builtin, and implicit command-line continuationHigh-productivity editing techniques using vim and emacsA comprehensive, 300-plus-page command reference section covering 102 utilities, including find, grep, sort, and tarInstructions for updating systems using apt-get and dnfAnd much more, including coverage of BitTorrent, gawk, sed, find, sort, bzip2, and regular expressions
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Linux Kernel Development
Linux Kernel Development details the design and implementation of the Linux kernel, presenting the content in a manner that is beneficial to those writing and developing kernel code, as well as to programmers seeking to better understand the operating system and become more efficient and productive in their coding. The book details the major subsystems and features of the Linux kernel, including its design, implementation, and interfaces.It covers the Linux kernel with both a practical and theoretical eye, which should appeal to readers with a variety of interests and needs. The author, a core kernel developer, shares valuable knowledge and experience on the 2.6 Linux kernel.Specific topics covered include process management, scheduling, time management and timers, the system call interface, memory addressing, memory management, the page cache, the VFS, kernel synchronization, portability concerns, and debugging techniques.This book covers the most interesting features of the Linux 2.6 kernel, including the CFS scheduler, preemptive kernel, block I/O layer, and I/O schedulers. The third edition of Linux Kernel Development includes new and updated material throughout the book: An all-new chapter on kernel data structuresDetails on interrupt handlers and bottom halvesExtended coverage of virtual memory and memory allocationTips on debugging the Linux kernelIn-depth coverage of kernel synchronization and lockingUseful insight into submitting kernel patches and working with the Linux kernel community
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What is Linux Shell Programming 2?
Linux Shell Programming 2 is a continuation of the introductory course on shell scripting in the Linux operating system. It covers more advanced topics such as regular expressions, file manipulation, process management, and system administration tasks. The course aims to provide a deeper understanding of shell scripting and how it can be used to automate tasks and improve productivity in a Linux environment. Students will learn how to write more complex scripts and utilize the full power of the shell for system administration and automation.
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Is Bash the same as Linux and Shell programming?
Bash is a shell program that runs on Linux and other Unix-like operating systems. It is a specific type of shell, known as the Bourne-Again Shell, which is commonly used for scripting and command-line operations on Linux systems. Therefore, while Bash is a type of shell programming, it is not the same as Linux, which is an operating system, or shell programming in general, which encompasses various shell languages such as Bash, sh, and zsh.
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How can you execute multiple shell files from a shell file on a Linux root server?
To execute multiple shell files from a shell file on a Linux root server, you can use the following steps: 1. Create a shell file (let's call it main.sh) and list the shell files you want to execute in it, one after the other, using the command ./filename.sh (replace filename.sh with the actual file names). 2. Make sure that the shell files you want to execute have the execute permission. You can use the chmod command to give them the execute permission if they don't have it already. 3. Save the main.sh file and make it executable using the chmod +x main.sh command. 4. Finally, run the main.sh file using the ./main.sh command, and it will execute all the listed shell files one after the other. By following these steps, you can easily execute multiple shell files from a shell file on a Linux root server.
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What is a Linux shell script?
A Linux shell script is a text file containing a series of commands that can be executed by the shell (command-line interpreter) in a Linux operating system. It allows users to automate tasks, execute multiple commands in sequence, and perform complex operations by writing a script instead of entering commands manually. Shell scripts can also include variables, loops, conditional statements, and other programming constructs to make them more powerful and flexible. They are commonly used for system administration, software deployment, and other tasks in a Linux environment.
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Learning eBPF : Programming the Linux Kernel for Enhanced Observability, Networking, and Security
What is eBPF? With this revolutionary technology, you can write custom code that dynamically changes the way the kernel behaves.It's an extraordinary platform for building a whole new generation of security, observability, and networking tools. This practical book is ideal for developers, system administrators, operators, and students who are curious about eBPF and want to know how it works.Author Liz Rice, chief open source officer with cloud native networking and security specialists Isovalent, also provides a foundation for those who want to explore writing eBPF programs themselves. With this book, you will:Learn why eBPF has become so important in the past couple of yearsWrite basic eBPF code, and manipulate eBPF programs and attach them to eventsExplore how eBPF components interact with Linux to dynamically change the operating system's behaviorLearn how tools based on eBPF can instrument applications without changes to the apps or their configurationDiscover how this technology enables new tools for observability, security, and networking
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Learning eBPF: Programming the Linux Kernel for Enhanced Observability, Networking, and Security
Learning eBPF: Programming the Linux Kernel for Enhanced Observability, Networking, and Security
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Cloud Computing Server X2 New Shell RDP 7.1 Linux Thin Client Price
Wholesale Price ,Trade Assurance | Alibaba.com
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Mastering Linux Shell Scripting
Master the complexities of Bash shell scripting and unlock the power of shell for your enterpriseAbout This Book• Identify the high level steps such as verifying user input, using command lines and conditional statements in creating and executing simple shell scripts• Create and edit dynamic shell scripts to manage complex and repetitive tasks• Learn about scripting in Perl and programming in Python as a BASH scripting alternative with this practical, step-by-step guideWho This Book Is ForMastering Linux Shell Scripting has been written for Linux administrators who want to automate tasks in their daily lives, saving time and effort.You'll need to have command-line experience and be familiar with the tasks that you need to automate. What You Will Learn• Use the type command to identify the order of command evaluation• Create interactive scripts that prompt for user input• Foster menu structures for operators with little command-line experience• Develop scripts that dynamically edit web configuration files to produce a new virtual host• Write scripts that use AWK to search and reports on log files• Draft effective scripts using functions as building blocks, reducing maintenance and build time• Make informed choices by comparing different script languages such as Perl and Python with BASHIn DetailShell scripting is a quick method to prototype a complex application or a problem by automating tasks when working on Linux-based systems.Using both simple one-line commands and command sequences complex problems can be solved with ease, from text processing to backing up sysadmin tools. In this book, you'll discover everything you need to know to master shell scripting and make informed choices about the elements you employ.Get to grips with the fundamentals of creating and running a script in normal mode, and in debug mode.Learn about various conditional statements' code snippets, and realize the power of repetition and loops in your shell script.Implement functions and edit files using the Stream Editor, script in Perl, program in Python – as well as complete coverage of other scripting languages to ensure you can choose the best tool for your project. Style and approachThe book will capture your attention and keep you engaged with the simplicity and clarity of each explanation.Every step is accompanied with screen captures so you can cross-check the results before moving on.
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Do you know any good books on shell programming?
Yes, one highly recommended book on shell programming is "The Linux Command Line" by William E. Shotts Jr. This book covers a wide range of topics related to shell scripting and is suitable for beginners as well as more experienced users. Another popular choice is "Classic Shell Scripting" by Arnold Robbins and Nelson H.F. Beebe, which provides in-depth coverage of shell scripting concepts and techniques. Both books are well-regarded in the programming community and offer valuable insights into shell programming.
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Why is the Linux Debian server not executing the shell command and giving an error?
There could be several reasons why the Linux Debian server is not executing the shell command and giving an error. One possibility is that the command is not installed or available in the server's environment. Another reason could be that the user does not have the necessary permissions to execute the command. Additionally, there may be a syntax error in the command itself, causing it to fail. It's also possible that there is a problem with the server's configuration or resources, such as low memory or CPU usage. Troubleshooting these potential issues and checking the server logs can help identify the specific reason for the error.
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Does the Minecraft Bedrock Nautilus Shell have a programming error?
There have been reports from players that the Minecraft Bedrock Nautilus Shell has a programming error. Some players have experienced issues with obtaining Nautilus Shells from fishing or drowned mobs, leading to speculation that there may be a bug in the game's code. However, it is important to note that game updates and patches are regularly released to address bugs and improve gameplay, so it is possible that any reported issues with the Nautilus Shell may have been addressed in a recent update. Players are encouraged to stay informed about game updates and to report any ongoing issues to the game's developers for resolution.
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How can I truncate a string in the Linux shell?
You can truncate a string in the Linux shell using the `cut` command. For example, to truncate a string at a specific character position, you can use the `cut -c` option followed by the character position. Alternatively, you can use the `cut -b` option to truncate the string at a specific byte position. Another option is to use the `awk` command to truncate a string by specifying the number of characters to keep.
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