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دانلود کتاب Linux Shell Scripting Cookbook - Third Edition

دانلود کتاب Linux Cook Shell Scripting Cookbook - نسخه سوم

Linux Shell Scripting Cookbook - Third Edition

مشخصات کتاب

Linux Shell Scripting Cookbook - Third Edition

ویرایش: 3rd Revised edition 
نویسندگان: , ,   
سری:  
ISBN (شابک) : 1785881981, 9781785881985 
ناشر: Packt Publishing - ebooks Account 
سال نشر: 2017 
تعداد صفحات: 545 
زبان: English 
فرمت فایل : PDF (درصورت درخواست کاربر به PDF، EPUB یا AZW3 تبدیل می شود) 
حجم فایل: 2 مگابایت 

قیمت کتاب (تومان) : 37,000



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توجه داشته باشید کتاب Linux Cook Shell Scripting Cookbook - نسخه سوم نسخه زبان اصلی می باشد و کتاب ترجمه شده به فارسی نمی باشد. وبسایت اینترنشنال لایبرری ارائه دهنده کتاب های زبان اصلی می باشد و هیچ گونه کتاب ترجمه شده یا نوشته شده به فارسی را ارائه نمی دهد.


توضیحاتی در مورد کتاب Linux Cook Shell Scripting Cookbook - نسخه سوم

کارهای شگفت انگیزی با پوسته درباره این کتاب انجام دهید * در ایجاد اسکریپت های پوسته قدرتمند متخصص شوید و امکانات کامل پوسته را کشف کنید * هر کار اداری را که می توانید تصور کنید را خودکار کنید، با اسکریپت های پوسته * بسته بندی شده با دستور العمل های آسان برای دنبال کردن ویژگی های جدید در لینوکس، به ویژه مبتنی بر دبیان، به شما کمک می کند تا حتی پیچیده ترین وظایف را به راحتی انجام دهید این کتاب برای چه کسی است اگر یک کاربر مبتدی یا متوسط ​​لینوکس هستید و می خواهید مهارت نوشتن سریع اسکریپت ها و خودکارسازی وظایف بدون خواندن را به دست آورید. تمام صفحات مرد، پس این کتاب برای شماست. شما می توانید نوشتن اسکریپت ها و تک لاینرها را به سادگی با مشاهده دستور العمل مربوطه و توضیحات آن بدون هیچ گونه دانش کاری در مورد اسکریپت نویسی پوسته یا لینوکس شروع کنید. کاربران متوسط ​​/ پیشرفته، مدیران سیستم / توسعه دهندگان و برنامه نویسان می توانند از این کتاب به عنوان مرجع در صورت مواجه شدن با مشکل در هنگام کدنویسی استفاده کنند. آنچه یاد خواهید گرفت * تعامل با وب سایت ها از طریق اسکریپت * نوشتن اسکریپت های پوسته برای استخراج و پردازش داده ها از وب * پشتیبان گیری سیستم و سایر کارهای تکراری با crontab * ایجاد، فشرده سازی و رمزگذاری آرشیو داده های مهم خود. * پیکربندی و نظارت بر شبکه های اترنت و بی سیم * نظارت و ثبت فعالیت شبکه و سیستم * سیستم خود را برای عملکرد بهینه تنظیم کنید * امنیت سیستم خود را بهبود ببخشید * منابع و گلوگاه های شبکه را شناسایی کنید * صدا را از فایل های ویدئویی استخراج کنید * آلبوم های عکس وب ایجاد کنید * از git یا استفاده کنید فسیل برای مدیریت کنترل بازبینی و تعامل با پروژه‌های FOSS * ایجاد و نگهداری ظروف لینوکس و ماشین‌های مجازی * اجرای یک سرور خصوصی Cloud با جزئیات پوسته قوی‌ترین ابزاری است که رایانه شما ارائه می‌کند. با وجود داشتن آن در دستان خود، بسیاری از کاربران از این که پوسته چقدر می تواند انجام دهد بی اطلاع هستند. با استفاده از پوسته، می‌توانید پایگاه‌های داده و صفحات وب را از مجموعه‌هایی از فایل‌ها ایجاد کنید، وظایف مدیریت یکنواخت مانند پشتیبان‌گیری از سیستم را خودکار کنید، سلامت و فعالیت سیستم خود را نظارت کنید، گلوگاه‌های شبکه و منابع سیستم را شناسایی کنید و موارد دیگر. این کتاب به شما نشان می دهد که چگونه همه این کارها و خیلی چیزهای دیگر را انجام دهید. این کتاب که اکنون در نسخه سوم خود قرار دارد، ویژگی‌های جدید هیجان‌انگیز در جدیدترین توزیع‌های لینوکس را توصیف می‌کند تا به شما کمک کند بیش از آنچه تصور می‌کنید به انجام برسانید. این نشان می دهد که چگونه از دستورات ساده برای خودکارسازی وظایف پیچیده، خودکار کردن تعاملات وب، دانلود ویدیوها، راه اندازی کانتینرها و سرورهای ابری و حتی دریافت گواهینامه های رایگان SSL استفاده کنید. با شروع با اصول اولیه پوسته، دستورات ساده و نحوه اعمال آنها را در مسائل دنیای واقعی خواهید آموخت. از آنجا، پردازش متن، تعاملات وب، نظارت بر شبکه و سیستم و تنظیم سیستم را خواهید آموخت. مهندسان نرم افزار یاد خواهند گرفت که چگونه برنامه های کاربردی سیستم را بررسی کنند، چگونه از ابزارهای مدیریت نرم افزار مدرن مانند git و fossil برای کار خود استفاده کنند، و چگونه پچ ها را برای پروژه های منبع باز ارسال کنند. در نهایت، نحوه راه‌اندازی کانتینرها و ماشین‌های مجازی لینوکس و حتی اجرای سرور ابری خود را با گواهینامه SSL رایگان از letsencrypt.org یاد خواهید گرفت. سبک و رویکرد این کتاب شما را از طریق دستور العمل های مفید دنیای واقعی که برای آسان تر کردن زندگی روزمره شما هنگام کار با پوسته طراحی شده اند، راهنمایی می کند.


توضیحاتی درمورد کتاب به خارجی

Do amazing things with the shell About This Book * Become an expert in creating powerful shell scripts and explore the full possibilities of the shell * Automate any administrative task you could imagine, with shell scripts * Packed with easy-to-follow recipes on new features on Linux, particularly, Debian-based, to help you accomplish even the most complex tasks with ease Who This Book Is For If you are a beginner or an intermediate Linux user who wants to master the skill of quickly writing scripts and automate tasks without reading the entire man pages, then this book is for you. You can start writing scripts and one-liners by simply looking at the relevant recipe and its descriptions without any working knowledge of shell scripting or Linux. Intermediate / advanced users, system administrators / developers, and programmers can use this book as a reference when they face problems while coding. What You Will Learn * Interact with websites via scripts * Write shell scripts to mine and process data from the Web * Automate system backups and other repetitive tasks with crontab * Create, compress, and encrypt archives of your critical data. * Configure and monitor Ethernet and wireless networks * Monitor and log network and system activity * Tune your system for optimal performance * Improve your system's security * Identify resource hogs and network bottlenecks * Extract audio from video files * Create web photo albums * Use git or fossil to manage revision control and interact with FOSS projects * Create and maintain Linux containers and Virtual Machines * Run a private Cloud server In Detail The shell is the most powerful tool your computer provides. Despite having it at their fingertips, many users are unaware of how much the shell can accomplish. Using the shell, you can generate databases and web pages from sets of files, automate monotonous admin tasks such as system backups, monitor your system's health and activity, identify network bottlenecks and system resource hogs, and more. This book will show you how to do all this and much more. This book, now in its third edition, describes the exciting new features in the newest Linux distributions to help you accomplish more than you imagine. It shows how to use simple commands to automate complex tasks, automate web interactions, download videos, set up containers and cloud servers, and even get free SSL certificates. Starting with the basics of the shell, you will learn simple commands and how to apply them to real-world issues. From there, you'll learn text processing, web interactions, network and system monitoring, and system tuning. Software engineers will learn how to examine system applications, how to use modern software management tools such as git and fossil for their own work, and how to submit patches to open-source projects. Finally, you'll learn how to set up Linux Containers and Virtual machines and even run your own Cloud server with a free SSL Certificate from letsencrypt.org. Style and approach This book will take you through useful real-world recipes designed to make your daily life easier when working with the shell.



فهرست مطالب

Cover
Copyright
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Table of Contents
Preface
Chapter 1: Shell Something Out
	Introduction
	Displaying output in a terminal
		Getting ready
		How to do it...
		How it works...
		There's more...
			Escaping newline in echo
			Printing a colored output
	Using variables and environment variables
		Getting ready
		How to do it...
		There's more...
			Finding the length of a string
			Identifying the current shell
			Checking for super user
			Modifying the Bash prompt string (username@hostname:~$)
	Function to prepend to environment variables
		How to do it...
		How it works...
	Math with the shell
		How to do it...
	Playing with file descriptors and redirection
		Getting ready
		How to do it...
		How it works...
		There's more...
			Redirection from a file to a command
			Redirecting from a text block enclosed within a script
			Custom file descriptors
	Arrays and associative arrays
		Getting ready
		How to do it...
		There's more...
			Defining associative arrays
			Listing of array indexes
	Visiting aliases
		How to do it...
		There's more...
			Escaping aliases
			Listing aliases
	Grabbing information about the terminal
		Getting ready
		How to do it...
	Getting and setting dates and delays
		Getting ready
		How to do it...
		How it works...
		There's more...
			Producing delays in a script
	Debugging the script
		How to do it...
		How it works...
		There's more...
			Shebang hack
	Functions and arguments
		How to do it...
		There's more...
			The recursive function
			Reading the return value (status) of a command
			Passing arguments to commands
	Sending output from one command to another
		Getting ready
		How to do it...
		There's more...
			Spawning a separate process with subshell
			Subshell quoting to preserve spacing and the newline character
	Reading n characters without pressing the return key
		How to do it...
	Running a command until it succeeds
		How to do it...
		How it works...
		There's more...
			A faster approach
			Adding a delay
	Field separators and iterators
		Getting ready
		How to do it...
	Comparisons and tests
		How to do it...
	Customizing bash with configuration files
		How to do it...
Chapter 2: Have a Good Command
	Introduction
	Concatenating with cat
		How to do it...
		There's more...
			Getting rid of extra blank lines
			Displaying tabs as ^I
			Line numbers
	Recording and playing back terminal sessions
		Getting ready
		How to do it...
		How it works...
	Finding files and file listing
		Getting ready
		How to do it...
		There's more...
			Search based on name or regular expression match
			Negating arguments
			Searching based on the directory depth
			Searching based on file type
			Searching by file timestamp
			Searching based on file size
			Matching based on file permissions and ownership
			Performing actions on files with find
			Deleting based on file matches
			Executing a command
			Skipping specified directories when using the find command
	Playing with xargs
		Getting ready
		How to do it...
		How it works...
		There's more...
			Passing formatted arguments to a command by reading stdin
			Using xargs with find
			Counting the number of lines of C code in a source code directory
			While and subshell trick with stdin
	Translating with tr
		Getting ready
		How to do it...
		How it works...
		There's more...
			Deleting characters using tr
			Complementing character sets
			Squeezing characters with tr
			Character classes
	Checksum and verification
		Getting ready
		How to do it...
		How it works...
		There's more...
			Checksum for directories
	Cryptographic tools and hashes
		How to do it...
	Sorting unique and duplicate lines
		Getting ready
		How to do it...
		How it works...
		There's more...
			Sorting according to keys or columns
			uniq
	Temporary file naming and random numbers
		How to do it...
		How it works...
	Splitting files and data
		How to do it...
		There's more...
			Specifying a filename prefix for the split files
	Slicing filenames based on extensions
		How to do it...
		How it works...
	Renaming and moving files in bulk
		Getting ready
		How to do it...
		How it works...
	Spell–checking and dictionary manipulation
		How to do it...
		How it works...
	Automating interactive input
		Getting ready
		How to do it...
		How it works...
		There's more...
			Automating with expect
	Making commands quicker by running parallel processes
		How to do it...
		How it works...
		There's more...
	Examining a directory, files and subdirectories in it
		Getting ready
		How to do it...
			Generating a tree view of a directory.
			Generating a summary of files and sub-directories
Chapter 3: File In, File Out
	Introduction
	Generating files of any size
		How to do it...
	The intersection and set difference (A-B) on text files
		Getting ready
		How to do it...
		How it works...
	Finding and deleting duplicate files
		Getting ready
		How to do it...
		How it works...
	Working with file permissions, ownership, and the sticky bit
		How to do it...
		There's more...
			Changing ownership
			Setting the sticky bit
			Applying permissions recursively to files
			Applying ownership recursively
			Running an executable as a different user (setuid)
	Making files immutable
		Getting ready
		How to do it...
	Generating blank files in bulk
		Getting ready
		How to do it...
	Finding symbolic links and their targets
		How to do it...
		How it works...
	Enumerating file type statistics
		Getting ready
		How to do it...
		How it works...
	Using loopback files
		How to do it...
		How it works...
		There's more...
			Creating partitions inside loopback images
			Mounting loopback disk images with partitions more quickly
			Mounting ISO files as loopback
			Flush changing immediately with sync
	Creating ISO files and hybrid ISO
		Getting ready
		How to do it...
		There's more...
			Hybrid ISO that boots off a flash drive or hard disk
			Burning an ISO from the command line
			Playing with the CD-ROM tray
	Finding the difference between files, and patching
		How to do it...
		There's more...
			Generating difference against directories
	Using head and tail for printing the last or first 10 lines
		How to do it...
	Listing only directories - alternative methods
		Getting ready
		How to do it...
		How it works...
	Fast command-line navigation using pushd and popd
		Getting ready
		How to do it...
		There's more...
			pushd and popd are useful when there are more than three directory paths used. However, when you use only two locations, there is an alternative and easier way, that is, cd -.
	Counting the number of lines, words, and characters in a file
		How to do it...
	Printing the directory tree
		Getting ready
		How to do it...
		There's more...
			HTML output for tree
	Manipulating video and image files
		Getting ready
			Extracting Audio from a movie file (mp4)
		How to do it...
			Making a video from a set of still images
				How to do it...
				How it works...
			Creating a panned video from a still camera shot
				How to do it...
				How it works...
Chapter 4: Texting and Driving
	Introduction
	Using regular expressions
		How to do it...
			Position markers
			Identifiers
			Count modifiers
			Other
			There's more...
		How it works...
		There's more...
			Treatment of special characters
			Visualizing regular expressions
	Searching and mining text inside a file with grep
		How to do it...
		There's more...
			Recursively searching many files
			Ignoring case in patterns
			grep by matching multiple patterns
			Including and excluding files in a grep search
			Using grep with xargs with the zero-byte suffix
			Silent output for grep
			Printing lines before and after text matches
	Cutting a file column-wise with cut
		How to do it...
		There's more
			Specifying the range of characters or bytes as fields
	Using sed to perform text replacement
		How to do it...
		There's more...
			Removing blank lines
			Performing replacement directly in the file
			Matched string notation ()
			Substring match notation (\1)
			Combining multiple expressions
			Quoting
	Using awk for advanced text processing
		Getting ready
		How to do it...
		How it works...
		There's more...
			Special variables
			Passing an external variable to awk
			Reading a line explicitly using getline
			Filtering lines processed by awk with filter patterns
			Setting delimiters for fields
			Reading the command output from awk
			Associative arrays in Awk
			Using loop inside awk
			String manipulation functions in awk
	Finding the frequency of words used in a given file
		Getting ready
		How to do it...
		How it works...
		See also
	Compressing or decompressing JavaScript
		Getting ready
		How to do it...
		How it works...
		See also
	Merging multiple files as columns
		How to do it...
		See also
	Printing the nth word or column in a file or line
		How to do it...
		See also
	Printing text between line numbers or patterns
		Getting ready
		How to do it...
		See also
	Printing lines in the reverse order
		Getting ready
		How to do it...
		How it works...
	Parsing e-mail address and URLs from text
		How to do it...
		How it works...
		See also
	Removing a sentence in a file containing a word
		Getting ready
		How to do it...
		How it works...
		See also
	Replacing a pattern with text in all the files in a directory
		How to do it...
		How it works...
		There's more...
	Text slicing and parameter operations
		How to do it...
		See also
Chapter 5: Tangled Web? Not At All!
	Introduction
	Downloading from a web page
		Getting ready
		How to do it...
		How it works...
		There's more...
			Restricting the download speed
			Resume downloading and continue
			Copying a complete website (mirroring)
			Accessing pages with HTTP or FTP authentication
	Downloading a web page as plain text
		Getting ready
		How to do it...
	A primer on cURL
		Getting ready
		How to do it...
		How it works...
		There's more...
			Continuing and resuming downloads
			Setting the referer string with cURL
			Cookies with cURL
			Setting a user agent string with cURL
			Specifying a bandwidth limit on cURL
			Specifying the maximum download size
			Authenticating with cURL
			Printing response headers excluding data
		See also
	Accessing unread Gmail e-mails from the command line
		How to do it...
		How it works...
		See also
	Parsing data from a website
		How to do it...
		How it works...
		See also
	Image crawler and downloader
		How to do it...
		How it works...
		See also
	Web photo album generator
		Getting ready
		How to do it...
		How it works...
		See also
	Twitter command-line client
		Getting ready
		How to do it...
		How it works...
		See also
	Accessing word definitions via a web server
		Getting ready
		How to do it...
		How it works...
		See also
	Finding broken links in a website
		Getting ready
		How to do it...
		How it works...
		See also
	Tracking changes to a website
		Getting ready
		How to do it...
		How it works...
		See also
	Posting to a web page and reading the response
		Getting ready
		How to do it...
		See also
	Downloading a video from the Internet
		Getting ready
		How to do it...
		How it works...
	Summarizing text with OTS
		Getting ready
		How to do it...
		How it works...
	Translating text from the command line
		Getting ready
		How to do it...
		How it works...
Chapter 6: Repository Management
	Introduction
	Creating a new git repository
		Getting ready
		How to do it...
		How it works...
	Cloning a remote git repository
		How to do it...
	Adding and committing changes with git
		How to do it...
	Creating and merging branches with git
		Getting ready...
		How to do it...
		How it works...
		There's more...
			Merging branches
				How to do it...
				How it works...
				There's more...
	Sharing your work
		How to do it...
	Pushing a branch to a server
		How to do it...
	Checking the status of a git repository
		How to do it...
		How it works...
	Viewing git history
		How to do it...
	Finding bugs
		How to do it...
		There's more...
			How to do it...
			How it works...
	Tagging snapshots
		How to do it...
	Committing message ethics
		How to do it...
	Using fossil
		Getting ready
		How to do it...
	Creating a new fossil repository
		How to do it...
		How it works...
		There's more...
			Web interface to fossil
				How to do it...
			Making a repository available to remote users
	Cloning a remote fossil repository
		How to do it...
		How it works...
	Opening a fossil project
		How to do it...
		How it works...
		There's more...
	Adding and committing changes with fossil
		How to do it...
		There's more...
	Using branches and forks with fossil
		How to do it
		How it works...
		There's more...
			Merging forks and branches
				How to do it...
	Sharing your work with fossil
		How to do it...
		How it works...
	Updating your local fossil repository
		How to do it...
	Checking the status of a fossil repository
		How to do it...
	Viewing fossil history
		How to do it...
			Finding bugs
				How to do it...
				There's more...
			Tagging snapshots
				How to do it...
				There's more...
Chapter 7: The Backup Plan
	Introduction
	Archiving with tar
		Getting ready
		How to do it...
		How it works...
		There's more...
			Appending files to an archive
			Extracting files and folders from an archive
			stdin and stdout with tar
			Concatenating two archives
			Updating files in an archive with a timestamp check
			Comparing files in the archive and filesystem
			Deleting files from the archive
			Compression with the tar archive
			Excluding a set of files from archiving
			Excluding version control directories
			Printing the total bytes
		See also
	Archiving with cpio
		How to do it...
		How it works...
	Compressing data with gzip
		How to do it...
		There's more...
			Gzip with tarball
			zcat - reading gzipped files without extracting
			Compression ratio
			Using bzip2
			Using lzma
		See also
	Archiving and compressing with zip
		How to do it...
		How it works...
	Faster archiving with pbzip2
		Getting ready
		How to do it...
		How it works...
		There's more...
			Manually specifying the number of CPUs
			Specifying the compression ratio
	Creating filesystems with compression
		Getting ready
		How to do it...
		There's more...
			Excluding files while creating a squashfs file
	Backing up snapshots with rsync
		How to do it...
		How it works...
		There's more...
			Excluding files while archiving with rsync
			Deleting non-existent files while updating rsync backup
			Scheduling backups at intervals
	Differential archives
		How to do it...
		How it works...
	Creating entire disk images using fsarchiver
		Getting ready
		How to do it...
		How it works...
Chapter 8: The Old-Boy Network
	Introduction
	Setting up the network
		Getting ready
		How to do it...
		There's more...
			Printing the list of network interfaces
			Displaying IP addresses
			Spoofing the hardware address (MAC address)
			Name server and DNS (Domain Name Service)
				DNS lookup
			Showing routing table information
		See also
	Let us ping!
		How to do it...
		There's more...
			Round Trip Time
			Sequence number
			Time to live
			Limiting the number of packets to be sent
			Return status of the ping command
	Tracing IP routes
		How to do it...
	Listing all available machines on a network
		Getting ready
		How to do it...
		How it works...
		There's more...
			Parallel pings
				Using fping
		See also
	Running commands on a remote host with SSH
		Getting ready
		How to do it...
		There's more...
			SSH with compression
			Redirecting data into stdin of remote host shell commands
	Running graphical commands on a remote machine
		How to do it...
		See also
	Transferring files through the network
		Getting ready
		How to do it...
		There's more...
			Automated FTP transfer
			SFTP (Secure FTP)
			The rsync command
			SCP (secure copy program)
			Recursive copying with scp
		See also
	Connecting to a wireless network
		Getting ready
		How to do it...
		How it works...
		See also
	Password-less auto-login with SSH
		Getting ready
		How to do it...
	Port forwarding using SSH
		How to do it...
		There's more...
			Non-interactive port forward
			Reverse port forwarding
	Mounting a remote drive at a local mount point
		Getting ready
		How to do it...
		See also
	Network traffic and port analysis
		Getting ready
		How to do it...
		How it works...
		There's more...
			Opened port and services using netstat
	Measuring network bandwidth
		How to do it...
	Creating arbitrary sockets
		Getting ready
		How to do it...
		There's more...
			Quickly copying files over the network
			Creating a broadcasting server
		How it works...
	Building a bridge
		Getting ready
		How to do it...
	Sharing an Internet connection
		Getting ready
		How to do it...
		How it works
	Basic firewall using iptables
		How to do it...
		How it works...
		There's more...
	Creating a Virtual Private Network
		Getting ready
		How to do it...
			Creating certificates
			Configuring OpenVPN on the server
			Configuring OpenVPN on the client
			Starting the server
			Starting and testing a client
Chapter 9: Put On the Monitors Cap
	Introduction
	Monitoring disk usage
		Getting ready
		How to do it...
		There's more...
			Displaying disk usage in KB, MB, or blocks
			Displaying the grand total sum of disk usage
			Printing sizes in specified units
			Excluding files from the disk usage calculation
			Finding the ten largest size files from a given directory
			Disk free information
	Calculating the execution time for a command
		How to do it...
		How it works...
	Collecting information about logged in users, boot logs, and boot failures
		Getting ready
		How to do it...
	Listing the top ten CPU– consuming processes in an hour
		Getting ready
		How to do it...
		How it works...
		See also
	Monitoring command outputs with watch
		How to do it...
		There's more
			Highlighting the differences in the watch output
	Logging access to files and directories
		Getting ready
		How to do it...
		How it works...
	Logging with syslog
		Getting ready
		How to do it...
		See also
	Managing log files with logrotate
		Getting ready
		How to do it...
		How it works...
	Monitoring user logins to find intruders
		Getting ready
		How to do it...
		How it works...
	Monitoring remote disk usage health
		Getting ready
		How to do it...
		How it works...
		See also
	Determining active user hours on a system
		Getting ready
		How to do it...
		How it works...
	Measuring and optimizing power usage
		Getting ready
		How to do it...
	Monitoring disk activity
		Getting ready
		How to do it...
	Checking disks and filesystems for errors
		Getting ready
		How to do it...
		How it works...
	Examining disk health
		Getting ready
		How to do it...
		How it works
	Getting disk statistics
		Getting ready
		How to do it...
		How it works
		There's more
Chapter 10: Administration Calls
	Introduction
	Gathering information about processes
		Getting ready
		How to do it...
		How it works...
		There's more...
			Showing environment variables for a process
			Creating a tree view of processes
			Sorting ps output
			Filters with ps for real user or ID, effective user or ID
			TTY filter for ps
			Information about process threads
			Specifying the output width and columns to be displayed
	What's what – which, whereis, whatis, and file  
		How to do it...
			Finding the process ID from the given command names
			Determining how busy a system is
			The top command
		See also...
	Killing processes, and sending and responding to signals
		Getting ready
		How to do it...
		There's more...
			The kill family of commands
			Capturing and responding to signals
	Sending messages to user terminals
		Getting ready
		How to do it...
			Sending one message to one user
			Holding a conversation with another user
			Sending a message to all users
	The /proc filesystem
		How to do it...
	Gathering system information
		How to do it...
	Scheduling with a cron
		Getting ready
		How to do it...
		How it works...
		There's more...
			Specifying environment variables
			Running commands at system start-up/boot
			Viewing the cron table
			Removing the cron table
	Database styles and uses
		Getting ready
		How to do it...
		There's more...
			Creating a table
			Inserting a row into an SQL database
			Selecting rows from a SQL database
	Writing and reading SQLite databases
		Getting ready
		How to do it...
		How it works...
		There's more...
	Writing and reading a MySQL database from Bash
		Getting ready
		How to do it...
		How it works...
	User administration scripts
		How to do it...
		How it works...
	Bulk image resizing and format conversion
		Getting ready
		How to do it...
		How it works...
		See also
	Taking screenshots from the terminal
		Getting ready
		How to do it...
	Managing multiple terminals from one
		Getting ready
		How to do it...
Chapter 11: Tracing the Clues
	Introduction
	Tracing packets with tcpdump
		Getting ready
		How to do it...
			Displaying only HTTP packets
			Displaying only HTTP packets generated by this host
			Viewing the packet payload as well as headers
		How it works...
	Finding packets with ngrep
		Getting ready
		How to do it...
		How it works...
		There's more...
	Tracing network routes with ip
		Getting ready
		How to do it...
			Reporting routes with ip route
			Tracing recent IP connections and the ARP table
			Tracing a route
			How it works...
	Tracing system calls with strace
		Getting ready
		How to do it...
		How it works...
	Tracing dynamic library functions with ltrace
		Getting ready
		How to do it...
		How it works...
		There's more...
Chapter 12: Tuning a Linux System
	Introduction
	Identifying services
		Getting ready
		How to do it...
			systemd-based computers
			RedHat-based computers
			Debian-based computers
		There's more
	Gathering socket data with ss
		Getting ready
		How to do it...
			Displaying the status of tcp sockets
			Tracing applications listening on ports
		How it works
	Gathering system I/O usage with dstat
		Getting ready
		How to do it...
			Viewing system activity
		How it works
		There's more...
	Identifying a resource hog with pidstat
		Getting ready
		How to do it...
		How it works
	Tuning the Linux kernel with sysctl
		Getting started
		How to do it...
			Tuning the task scheduler
			Tuning a network
		How it works
		There's more...
	Tuning a Linux system with config files
		Getting ready
		How to do it...
		How it works
	Changing scheduler priority using the nice command
		How to do it...
		How it works
		There's more
Chapter 13: Containers, Virtual Machines, and the Cloud
	Introduction
	Using Linux containers
		Getting ready
		How to do it...
			Creating a privileged container
			Starting a container
			Stopping a container
			Listing known containers
			Displaying container information
			Creating an unprivileged container
			Creating an Ethernet bridge
		How it works...
	Using Docker
		Getting ready
		How to do it...
			Finding a container
			Downloading a container
			Starting a Docker container
			Listing the Docker sessions
			Attaching your display to a running Docker container
			Stopping a Docker session
			Removing a Docker instance
		How it works
	Using Virtual Machines in Linux
		Getting ready
		How to do it...
	Linux in the cloud
		Getting ready
			Ubuntu 16.10
			OpenSuSE Tumbleweed
		How to do it...
			Configuring OwnCloud
		There's more...
Index




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