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Unix in a Nutshell, 4th Edition
book

Unix in a Nutshell, 4th Edition

by Arnold Robbins
October 2005
Intermediate to advanced
908 pages
46h 42m
English
O'Reilly Media, Inc.
Content preview from Unix in a Nutshell, 4th Edition

Overview of Features

The Bash and Korn shells provide the following features:

  • Input/output redirection

  • Wildcard characters (metacharacters) for filename abbreviation

  • Shell variables and options for customizing your environment

  • A built-in command set for writing shell programs

  • Shell functions, for modularizing tasks within a shell program

  • Job control

  • Command-line editing (using the command syntax of either vi or Emacs)

  • Access to previous commands (command history)

  • Integer arithmetic

  • Arrays and arithmetic expressions

  • Command-name abbreviation (aliasing)

ksh93 and Bash (but not ksh88) have the following capabilities:

  • Upwards compliance with POSIX

  • Internationalization facilities

  • An arithmetic for loop

  • More ways to substitute variables

ksh93 adds the following capabilities:

  • Floating-point arithmetic and built-in arithmetic functions

  • Structured variable names and indirect variable references

  • Associative arrays

  • More ways to match patterns

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Publisher Resources

ISBN: 0596100299Errata Page