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# Index: B

background jobs
  1.8. Background Jobs
  4.1. Shell Scripts and Functions
  8. Process Handling
  8.1. Process IDs and Job Numbers
  ! variable (process ID of most recent) : 8.4.2. Process ID Variables and Temporary Files
  creating : 8.2. Job Control
  lack of in MS-DOS : A.6. Workalikes on PC Platforms
  saving standard output and error of : 7.1.2. File Descriptors
  with two-way pipes : 8.5.4. Coroutines with Two-way Pipes
Backus-Naur Form (BNF) : A.4. pdksh
basename : 4.3.3. Pattern-matching Operators
bash
  1.4. Getting the Korn Shell
  A. Related Shells
  A.5. bash
  obtaining from Internet : A.5. bash
bc : 8.5.4. Coroutines with Two-way Pipes
bg
  8.2. Job Control
  8.2.2. Suspending a Job
  A.1. The Bourne Shell
biff : 3.4.2.2. Mail Variables
/bin
  3.4.2.5. Command Search Path
  10.3.2. A System Break-in Scenario
BITFTP : C.3. BITFTP
Bourne shell
  Preface
  Summary of Korn Shell Features
  1.3. History of UNIX Shells
  1.3.1. The Korn Shell
  1.3.2. Features of the Korn Shell
  1.4. Getting the Korn Shell
  2. Command-line Editing
  3.3. Options
  4.1.1. Functions
  4.2. Shell Variables
  4.3.2. Patterns and Regular Expressions
  4.4. Command Substitution
  5.1.3.1. String comparisons
  5.4. select
  6.1.3. getopts
  6.2. Integer Variables and Arithmetic
  7.1. I/O Redirectors
  7.1.2. File Descriptors
  8.5.4. Coroutines with Two-way Pipes
  9. Debugging Shell Programs
  10.1. Installing the Korn Shell as the Standard Shell
  A. Related Shells
  A.1. The Bourne Shell
  A.2. The IEEE 1003.2 POSIX Shell Standard
  A.4. pdksh
  A.5. bash
Bourne, Steven : 1.3. History of UNIX Shells
break : 5.4. select
BSD
  1.3. History of UNIX Shells
  1.9.5. Control Keys
  2.3.4. Moving Around in the History File
  2.3.6. Miscellaneous Commands
  2.4. Vi Editing Mode
  3.4.2.2. Mail Variables
built-in commands
  ability to add new in next release : A.7. The Future of the Korn Shell
  online help for in next release : A.7. The Future of the Korn Shell
  order of precedence in command lookup
    4.1.1. Functions
    7.3. Command-line Processing
built-in variables
  3.4. Shell Variables
  (see also environment variables)
  # : 4.2.1. Positional Parameters
  $ : 2.2. The History File
  * : 4.2.1. Positional Parameters
    as default list in for statement : 5.2. for
    as default list in select statement : 5.4. select
  * and # in functions : 4.2.1.1. Positional parameters in functions
  ?
    5.1.1. Exit Status and Return
    9.1.2.2. ERR
    9.2.5. Exercises
  @ : 4.2.1. Positional Parameters
  CDPATH : 3.4.3. Directory Search Path
  COLUMNS
    3.4.2.1. Editing mode variables
    7.2.2.3. Code blocks
  EDITOR
    3.4.2.1. Editing mode variables
    3.5.1. Environment Variables
  ERRNO, obsolescence in next release : A.7. The Future of the Korn Shell
  FCEDIT : 3.4.2.1. Editing mode variables
  FPATH
    4.1.1.1. Autoloaded functions
    10.2.3. Types of Global Customization
  LINENO
    9.1.1. Set Options
    9.1.2.2. ERR
    9.2.2. The Preamble
  LINES : 3.4.2.1. Editing mode variables
  list of those not supported in Bourne shell : A.1. The Bourne Shell
  list of those not supported in pdksh : A.4. pdksh
  MAILCHECK : 3.4.2.2. Mail Variables
  MAILPATH : 3.4.2.5. Command Search Path
  naming convention : 3.4. Shell Variables
  OLDPWD
    3.4.3.1. Miscellaneous Variables
    4.5. Advanced Examples: pushd and popd
    5.1.1. Exit Status and Return
    7.3. Command-line Processing
  OPTARG : 6.1.3. getopts
  OPTIND : 6.1.3. getopts
  PID : A.6. Workalikes on PC Platforms
  positional parameters : (see positional parameters)
  PS1
    3.4.2.3. Prompting Variables
    4.4. Command Substitution
  PS2 : 3.4.2.3. Prompting Variables
  PS3
    3.4.2.3. Prompting Variables
    5.4. select
    command substitution in next release : A.7. The Future of the Korn Shell
  PS4
    3.4.2.3. Prompting Variables
    9.1.1. Set Options
    in kshdb : 9.2.3. Debugger Functions
  RANDOM : 9.1.2.1. EXIT
  REPLY
    in read statement : 7.2.2. read
    in select statement
      5.4. select
      6.3. Arrays
  SECONDS : 3.4.3.1. Miscellaneous Variables
  VISUAL : 3.4.2.1. Editing mode variables

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