Linux Shell Scripting Cookbook - Tushar, Shantanu (Packt Publishing, 2013)
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Cover; Copyright; Credits; About the Authors; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Shell Something Out; Introduction; Printing in the terminal; Playing with variables and environment variables; Function to prepend to environment variables; Math with the shell; Playing with file descriptors and redirection; Arrays and associative arrays; Visiting aliases; Grabbing information about the terminal; Getting and setting dates and delays; Debugging the script; Functions and arguments; Reading the output of a sequence of commands
Reading n characters without pressing the return keyRunning a command until it succeeds; Field separators and iterators; Comparisons and tests; Chapter 2: Have a Good Command; Introduction; Concatenating with cat; Recording and playing back of terminal sessions; Finding files and file listing; Playing with xargs; Translating with tr; Checksum and verification; Cryptographic tools and hashes; Sorting unique and duplicates; Temporary file naming and random numbers; Splitting files and data; Slicing filenames based on extension; Renaming and moving files in bulk
Spell checking and dictionary manipulationAutomating interactive input; Making commands quicker by running parallel processes; Chapter 3: File In, File Out; Introduction; Generating files of any size; The intersection and set difference (A-B) on text files; Finding and deleting duplicate files; Working with file permissions, ownership, and the sticky bit; Making files immutable; Generating blank files in bulk; Finding symbolic links and their targets; Enumerating file type statistics; Using loopback files; Creating ISO files and hybrid ISO; Finding the difference between files, patching
Using head and tail for printing the last or first 10 linesListing only directories -- alternative methods; Fast command-line navigation using pushd and popd; Counting the number of lines, words, and characters in a file; Printing the directory tree; Chapter 4: Texting and Driving; Introduction; Using regular expressions; Searching and mining a text inside a file with grep; Cutting a file column-wise with cut; Using sed to perform text replacement; Using awk for advanced text processing; Finding the frequency of words used in a given file; Compressing or decompressing JavaScript