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Index: Symbols and Numbers

• "batch editing" : Batch Editing
• (zero) process ID : Killing All Your Processes
• -1 process ID : Killing All Your Processes
• • C shell operator : Assignment Operators
• filename extension : Filename Extensions
• -bit filenames : Using unlink to Remove a File with a Strange Name
• cols file
• • Single Line Screen Width: 80cols
  • Quick Descriptions of What's on the Disc
• -track tapes : Writing a Tape Drive on a Remote Machine
• & (ampersand)
• • && : Automating Your Own Calendar
  • && C shell operator : Bitwise and Logical Operators
  • && operator : Testing Your Success
  • • examples : Testing Your Success
  • && sequence : Running a Series of Commands on a File
  • &= : Assignment Operators
  • C shell operator : Bitwise and Logical Operators
  • on command line : How Background Processing Works
  • at end of commands : Managing Processes: Overall Concepts
  • escaping special characters using : ASCII Characters: Listing and Getting Values
  • as logical operator for expr : Quick Reference: expr
  • precedence in C shell : Expressions
• * (asterisk)
• • *= C shell operator : Assignment Operators
  • as arithmetic operator for expr : Quick Reference: expr
  • C shell operator : Arithmetic Operators
  • examples : Searching Online Manual Pages
  • filename wildcard : Filename Wildcards tutorial
  • in pcal : PostScript Calendars with pcal
  • precedence in C shell : Expressions
  • regular expression metacharacter
  • • Understanding Expressions
    • Repeating Character Sets with *
  • as wildcard character : Wildcards
• @ (at sign) : Build Strings with { }
• @ commands (csh)
• • Expressions
  • Examples
• @-functions (vi) : vi @-Functions
• (backslash)
• • \< \> metacharacters : Matching Words with \ < and \ >
  • \( \) metacharacters : Remembering Patterns with \ (, \ ), and \1
  • \1, \2, ... metacharacters : Remembering Patterns with \ (, \ ), and \1
  • \{ \} metacharacters : Matching a Specific Number of Sets with \ { and \ }
  • for avoiding multiline commands : Multiline Commands, Secondary Prompts
  • before newline
  • • Multiline Quoting
    • How Quoting Works
  • in C shell scripts : Putting awk, sed, etc., Inside Shell Scripts
  • for escape sequences : Portability
  • escaping special characters : Shell Aliases with Command-Line Arguments
  • placement of : How Many Backslashes?
  • preventing history substitution : Command-Line Evaluation
  • in prompt settings : External Commands Send Signals to Set Variables
  • quoting and : How Quoting Works
  • in stty command : Setting Your Erase, Kill, and Interrupt Characters
• ` (backquotes)
• • command substitution : Command Substitution
  • examples
  • • Standard Command-Line Parsing
    • apropos on Systems Without apropos
  • for loops combined with : Standard Input to a for Loop
  • nesting : Nested Command Substitution
• ! (bang)
• • !* variable : Shell Aliases with Command-Line Arguments
  • !:script : Quick Descriptions of What's on the Disc
  • != C shell operator : Comparison Operators
  • != relational operator : Quick Reference: expr
  • !\* : Which Version Am I Using?
  • automatic temporary files : Automatic Temporary Files with !
  • with brackets wildcards : Filename Wildcards tutorial
  • in C shell quoting : How Quoting Works
  • C shell operator : Bitwise and Logical Operators
  • history substitution commands : History Substitutions
  • • !:n* sequence
    • • My Favorite Is !:n*
      • History Substitutions
    • !$ sequence
    • • Shell Aliases with Command-Line Arguments
      • My Favorite Is !$
      • Using !$ for Safety with Wildcards
      • History Substitutions
  • NOT operator
  • • The find Command Is Great; The Problem Is Finding How to Use It
    • Be an Expert on find Search Operators
  • preceding operators : Setting the Terminal Type When You Log In
  • terms for : Type Bang Splat. Don't Forget the Rabbit Ears
• { } (braces)
• • { cmd } C shell operator : Bitwise and Logical Operators
  • /{ /} metacharacters : Extended Regular Expressions
  • \{ \} metacharacters : Matching a Specific Number of Sets with \ { and \ }
  • Bourne shell list operators : Using {list} to Group Bourne Shell Commands
  • building strings : Build Strings with { }
  • in C shell : Variables
  • creating new files with : Wildcards
  • filename wildcards
  • • Filename Wildcards tutorial
    • Adding { } Operators to Korn (and Bourne) Shells
  • find -exec command and : Running Commands on What You Find
  • foreach loop and : Repeating a Command with a foreach Loop
  • in shells : Who Handles Wildcards?
  • with variable names : Shell Variables
• [ ] (brackets)
• • [ command
  • • Stop Syntax Errors in Numeric Tests
    • Stop Syntax Errors in String Tests
  • [ at start of escape sequence : Terminal Escape Sequences
  • fast find and : Using "Fast find"
  • filename wildcards : Filename Wildcards tutorial
  • regular expression metacharacter : Specifying a Range of Characters with [...]
  • sc program using : It's Great to Have a Spreadsheet
  • wildcards : Use Wildcards to Create Files?
• ^ (caret)
• • ^[ : (see CTRL key)
  • ^^ sequence : My Favorite Is ^^
  • ^= C shell operator : Assignment Operators
  • ^^ sequence : History Substitutions
  • ^M : (see CTRL-m character)
  • C shell operator : Bitwise and Logical Operators
  • filename wildcard : Filename Wildcards tutorial
  • in control character : Special Character Codes
  • regular expression metacharacter : The Anchor Characters: ^ and $
  • within [ ] metacharacters : Exceptions in a Character Set
• (colon)
• • :p operator : Check Your History First with :p
  • as alternative to # : The Unappreciated Bourne Shell ":" Operator
  • as comment character : The Unappreciated Bourne Shell ":" Operator
  • as parameter substitute : The Unappreciated Bourne Shell ":" Operator
  • colon-separated lists : Find All Command Versions with whereiz
  • examples : Standard Command-Line Parsing
  • if loops using : The Unappreciated Bourne Shell ":" Operator
  • as logical operator for expr
  • • Quick Reference: expr
    • Examples
  • as null character : Test Exit Status with the if Statement
  • as parameter substitute : Parameter Substitution
  • separating fields
  • • Which Shell Am I Running?
    • Checklist: Terminal Hangs When I Log In
  • separating values : Setting the Terminal Type When You Log In
  • shell script comments : The Story of : # #!
  • string editing operator : String Editing (Colon) Operators
  • trap used with : Handling Signals to Child Processes
  • while loops using : The Unappreciated Bourne Shell ":" Operator
• (comma) in filenames : Filenames
• $ (dollar sign)
• • $0 parameter : Finding a Program Name; Multiple Program Names
  • $1 command-line arguments
  • • Set Exit Status of a Shell (Script)
    • Trapping Exits Caused by Interrupts
    • Handling Command-Line Arguments in Shell Scripts
  • $* argument : Matching with expr
  • $@ argument : Matching with expr
  • $! variable : Variable Syntax
  • $$ command-line arguments : Trapping Exits Caused by Interrupts
  • $# command-line argument : Counting Arguments with $#
  • $< variable : Reading Files
  • $() command : Nested Command Substitution
  • $? variable : More Elaborate Combinations
  • $* : Quoting and Command-Line Parameters
  • $@ : Quoting and Command-Line Parameters
  • • passing arguments to getopt : Standard Command-Line Parsing
  • $@ argument : With the $@"
  • as wildcard : Pattern Matching in case Statements
  • Bourne shell script variable : Exit Status of UNIX Processes
  • in C shells : Using C Shell Arrays
  • quoting and : How Quoting Works
  • regular expression metacharacter : The Anchor Characters: ^ and $
  • with variable names : Shell Variables
• $- test : Faster ksh and bash Startup with $- Test
• (dot)
• • . command, subroutines compared to : Reading Files with the . and source Commands
  • . scripts : Reading Files with the . and source Commands
  • .. for parent directory : Links to a Directory
  • for current directory : Links to a Directory
  • in filenames
  • • Filenames
    • Wildcards
  • filenames starting with : (see dot files)
  • in pathnames : Making Pathnames
  • regular expression metacharacter
  • • Understanding Expressions
    • Match any Character with . (Dot)
  • terms for : Type Bang Splat. Don't Forget the Rabbit Ears
• = (equal sign)
• • == C shell operator : Comparison Operators
  • =~ C shell operator : Comparison Operators
  • for alias definitions : Aliases in ksh and bash
  • as arithmetic operator for expr : Examples
  • C shell operator : Assignment Operators
  • as relational operator for expr
  • • Quick Reference: expr
    • Examples
• # (hash mark)
• • : (colon) used in place of : The Unappreciated Bourne Shell ":" Operator
  • #!
  • • Bourne shell scripts using : Testing How Your System Executes Files
  • #! notation
  • • verbose and echo Variables Show Quoting
    • The Story of : # #!
    • Fun with #!
    • in Bourne shell scripts : Writing a Simple Shell Program
    • character limit : Fun with #!
    • examples
    • • Don't Need a Shell for Your Script? Don't Use One
      • Fun with #!
    • executing files without showing : File That Shows Itself... and What #! Does
    • making programs executable : Fun with #!
  • alternatives to : The Unappreciated Bourne Shell ":" Operator
  • for comments : Simple Aliases
  • in crontab entries : Execution Scheduling
  • shell script comments : The Story of : # #!
• - (hyphen)
• • -= C shell operator : Assignment Operators
  • -- (two dashes) as argument to set command : The Bourne Shell set Command
  • - as dashes : Standard Command-Line Parsing
  • as arithmetic operator for expr : Quick Reference: expr
  • C shell operator
  • • Assignment Operators
    • Arithmetic Operators
  • command-line arguments starting with
  • • Handling Command-Line Arguments with a for Loop
    • Handling Arguments with while and shift
  • filenames starting with : Handling a Filename Starting with a Dash (-)
  • with << operator : Here Documents
  • in login shell : Approved Shells: Using Unapproved Login Shell
  • precedence in C shell : Expressions
  • for stdin (on command line) : The "Filename" -
• < (left angle bracket)
• • <= C shell operator : Comparison Operators
  • <= relational operator : Quick Reference: expr
  • << C shell operator : Bitwise and Logical Operators
  • << operator
  • • Here Documents
    • Introduction to Shell Archives
  • <<- operator
  • • Here Documents
    • Using Here Documents for Form Letters, etc.
  • /< /> metacharacters : Extended Regular Expressions
  • \< \> metacharacters : Matching Words with \ < and \ >
  • C shell operator : Comparison Operators
  • examples : Automating Your Own Calendar
  • precedence in C shell : Expressions
  • as relational operator for expr : Quick Reference: expr
• ( ) (parentheses)
• • \( \) metacharacters : Remembering Patterns with \ (, \ ), and \1
  • in extended regular expressions : Extended Regular Expressions
  • grouping expressions using : Expressions
  • as operators : Shell Setup Files-Which, Where, and Why
  • subshell operators : The () Subshell Operators
• % (percent sign)
• • %= C shell operator : Assignment Operators
  • as arithmetic operator for expr : Quick Reference: expr
  • C shell operator : Arithmetic Operators
  • default C shell prompt : Why Change Your Prompt?
  • for job numbers
  • • Foreground and Background
    • The "Current Job" Isn't Always What You Expect
  • precedence in C shell : Expressions
• + (plus sign)
• • += C shell operator : Assignment Operators
  • as arithmetic operator for expr
  • • Quick Reference: expr
    • Examples
  • C shell operator : Arithmetic Operators
  • in job reports : Foreground and Background
  • precedence in C shell : Expressions
  • regular expression metacharacter : Extended Regular Expressions
• ? (question mark)
• • ?*) wildcard : Pattern Matching in case Statements
  • ?) wildcard : Pattern Matching in case Statements
  • Bourne shell script variable : Exit Status of UNIX Processes
  • examples : Using C Shell Arrays
  • fast find and : Using "Fast find"
  • filename wildcard : Filename Wildcards tutorial
  • foreach loop and : Repeating a Command with a foreach Loop
  • in C shells : Using C Shell Arrays
  • regular expression metacharacter : Extended Regular Expressions
  • shell variable : Special C Shell Variables
  • as wildcard character : Wildcards
• ' (single quotes) : Single Quotes Inside Single Quotes?
• • around PS1 string : Highlighting in Shell Prompts
  • with bash pre-prompt commands : Pre-Prompt Commands in bash
  • passing wildcards to programs : Who Handles Wildcards?
  • prompt setting and : Faster Prompt Setting with Built-Ins
  • protecting special characters : Shell Aliases with Command-Line Arguments
  • quoting and
  • • How Quoting Works
    • Differences Between Bourne and C Shell Quoting
  • sc program using : It's Great to Have a Spreadsheet
• " (double quotes)
• • aliases in : Using More Complex Aliases
  • for comments : Setting Up vi with the .exrc File
  • passing wildcards to programs : Who Handles Wildcards?
  • prompt setting : Highlighting in Shell Prompts
  • quoting and
  • • How Quoting Works
    • Differences Between Bourne and C Shell Quoting
  • sc program using : It's Great to Have a Spreadsheet
  • in sed scripts : Cleaning script Files
  • terms for : Type Bang Splat. Don't Forget the Rabbit Ears
• > (right angle bracket)
• • >= : Comparison Operators
  • >& operator : Redirection in C Shell: Capture Errors, Too?
  • >= relational operator
  • • Quick Reference: expr
    • Examples
  • >> C shell operator : Bitwise and Logical Operators
  • >> for appending files : Handling Files Line-by-Line
  • C shell operator : Comparison Operators
  • precedence in C shell : Expressions
  • redirection operator : Special C Shell Variables
  • as relational operator for expr : Quick Reference: expr
• (semicolon)
• • on command line : Command-Line Evaluation
  • separating commands : Trapping Exits Caused by Interrupts
• / (slash)
• • /*/ wildcard : Pattern Matching in case Statements
  • /{ /} metacharacters : Extended Regular Expressions
  • /= C shell operator : Assignment Operators
  • /< /> metacharacters : Extended Regular Expressions
  • as arithmetic operator for expr
  • • Quick Reference: expr
    • Examples
  • C shell operator : Arithmetic Operators
  • fast find and : Using "Fast find"
  • in filenames
  • • Filenames
    • Wildcards
  • in pathnames
  • • Making Pathnames
    • Using Relative and Absolute Pathnames
  • precedence in C shell : Expressions
  • for root directory : The Tree Structure of the Filesystem
  • terms for : Type Bang Splat. Don't Forget the Rabbit Ears
• ~ (tilde)
• • C shell operator : Bitwise and Logical Operators
  • ending filenames : Finding (Anyone's) Home Directory, Quickly
  • filenames ending with : Using "Fast find"
  • for home directory
  • • dirs in Your Prompt: Better than $cwd
    • Finding (Anyone's) Home Directory, Quickly
  • in pathnames : Making Pathnames
• _ (underscore) in filenames : Filenames
• | (vertical bar)
• • Extended Regular Expressions
  • Exit Status of UNIX Processes
  • Standard Command-Line Parsing
  • (see also pipelines)
  • |& operator
  • • Send (only) Standard Error Down a Pipe
    • Redirection in C Shell: Capture Errors, Too?
  • |= C shell operator : Assignment Operators
  • || operator
  • • Test Exit Status with the if Statement
    • Testing Your Success
    • Standard Command-Line Parsing
    • Watch Out for Bourne Shell -e Bug
    • Bitwise and Logical Operators
    • examples : Testing Your Success
    • inverse of a condition : Test Exit Status with the if Statement
  • C shell operator : Bitwise and Logical Operators
  • as logical operator for expr : Quick Reference: expr
  • noclobber variable and : Safe I/O Redirection with noclobber
  • pipes : Programs Are Designed to Work Together
  • piping commands : Send (only) Standard Error Down a Pipe
  • precedence in C shell : Expressions
  • || operator : Making Sure Your Script Runs with Bourne Shell, Without #!

Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

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