\chapentry{Introduction}{1}{1}
\secentry{What is Bash?}{1}{1}{1}
\secentry{What is a shell?}{1}{2}{1}
\chapentry{Definitions}{2}{3}
\chapentry{Basic Shell Features}{3}{5}
\secentry{Shell Syntax}{3}{1}{5}
\subsecentry{Shell Operation}{3}{1}{1}{5}
\subsecentry{Quoting}{3}{1}{2}{5}
\subsubsecentry{Escape Character}{3}{1}{2}{1}{6}
\subsubsecentry{Single Quotes}{3}{1}{2}{2}{6}
\subsubsecentry{Double Quotes}{3}{1}{2}{3}{6}
\subsubsecentry{ANSI-C Quoting}{3}{1}{2}{4}{6}
\subsubsecentry{Locale-Specific Translation}{3}{1}{2}{5}{7}
\subsecentry{Comments}{3}{1}{3}{7}
\secentry{Shell Commands}{3}{2}{7}
\subsecentry{Simple Commands}{3}{2}{1}{8}
\subsecentry{Pipelines}{3}{2}{2}{8}
\subsecentry{Lists of Commands}{3}{2}{3}{8}
\subsecentry{Compound Commands}{3}{2}{4}{9}
\subsubsecentry{Looping Constructs}{3}{2}{4}{1}{9}
\subsubsecentry{Conditional Constructs}{3}{2}{4}{2}{10}
\subsubsecentry{Grouping Commands}{3}{2}{4}{3}{13}
\secentry{Shell Functions}{3}{3}{13}
\secentry{Shell Parameters}{3}{4}{15}
\subsecentry{Positional Parameters}{3}{4}{1}{15}
\subsecentry{Special Parameters}{3}{4}{2}{16}
\secentry{Shell Expansions}{3}{5}{17}
\subsecentry{Brace Expansion}{3}{5}{1}{17}
\subsecentry{Tilde Expansion}{3}{5}{2}{18}
\subsecentry{Shell Parameter Expansion}{3}{5}{3}{19}
\subsecentry{Command Substitution}{3}{5}{4}{21}
\subsecentry{Arithmetic Expansion}{3}{5}{5}{22}
\subsecentry{Process Substitution}{3}{5}{6}{22}
\subsecentry{Word Splitting}{3}{5}{7}{22}
\subsecentry{Filename Expansion}{3}{5}{8}{23}
\subsubsecentry{Pattern Matching}{3}{5}{8}{1}{23}
\subsecentry{Quote Removal}{3}{5}{9}{24}
\secentry{Redirections}{3}{6}{24}
\subsecentry{Redirecting Input}{3}{6}{1}{25}
\subsecentry{Redirecting Output}{3}{6}{2}{26}
\subsecentry{Appending Redirected Output}{3}{6}{3}{26}
\subsecentry{Redirecting Standard Output and Standard Error}{3}{6}{4}{26}
\subsecentry{Here Documents}{3}{6}{5}{26}
\subsecentry{Here Strings}{3}{6}{6}{27}
\subsecentry{Duplicating File Descriptors}{3}{6}{7}{27}
\subsecentry{Moving File Descriptors}{3}{6}{8}{27}
\subsecentry{Opening File Descriptors for Reading and Writing}{3}{6}{9}{28}
\secentry{Executing Commands}{3}{7}{28}
\subsecentry{Simple Command Expansion}{3}{7}{1}{28}
\subsecentry{Command Search and Execution}{3}{7}{2}{29}
\subsecentry{Command Execution Environment}{3}{7}{3}{29}
\subsecentry{Environment}{3}{7}{4}{30}
\subsecentry{Exit Status}{3}{7}{5}{31}
\subsecentry{Signals}{3}{7}{6}{31}
\secentry{Shell Scripts}{3}{8}{32}
\chapentry{Shell Builtin Commands}{4}{33}
\secentry{Bourne Shell Builtins}{4}{1}{33}
\secentry{Bash Builtin Commands}{4}{2}{39}
\secentry{The Set Builtin}{4}{3}{50}
\secentry{Special Builtins}{4}{4}{54}
\chapentry{Shell Variables}{5}{55}
\secentry{Bourne Shell Variables}{5}{1}{55}
\secentry{Bash Variables}{5}{2}{55}
\chapentry{Bash Features}{6}{65}
\secentry{Invoking Bash}{6}{1}{65}
\secentry{Bash Startup Files}{6}{2}{67}
\secentry{Interactive Shells}{6}{3}{69}
\subsecentry{What is an Interactive Shell?}{6}{3}{1}{69}
\subsecentry{Is this Shell Interactive?}{6}{3}{2}{69}
\subsecentry{Interactive Shell Behavior}{6}{3}{3}{69}
\secentry{Bash Conditional Expressions}{6}{4}{70}
\secentry{Shell Arithmetic}{6}{5}{72}
\secentry{Aliases}{6}{6}{73}
\secentry{Arrays}{6}{7}{74}
\secentry{The Directory Stack}{6}{8}{75}
\subsecentry{Directory Stack Builtins}{6}{8}{1}{75}
\secentry{Controlling the Prompt}{6}{9}{76}
\secentry{The Restricted Shell}{6}{10}{78}
\secentry{Bash POSIX Mode}{6}{11}{78}
\chapentry{Job Control}{7}{83}
\secentry{Job Control Basics}{7}{1}{83}
\secentry{Job Control Builtins}{7}{2}{84}
\secentry{Job Control Variables}{7}{3}{85}
\chapentry{Command Line Editing}{8}{87}
\secentry{Introduction to Line Editing}{8}{1}{87}
\secentry{Readline Interaction}{8}{2}{87}
\subsecentry{Readline Bare Essentials}{8}{2}{1}{87}
\subsecentry{Readline Movement Commands}{8}{2}{2}{88}
\subsecentry{Readline Killing Commands}{8}{2}{3}{88}
\subsecentry{Readline Arguments}{8}{2}{4}{89}
\subsecentry{Searching for Commands in the History}{8}{2}{5}{89}
\secentry{Readline Init File}{8}{3}{90}
\subsecentry{Readline Init File Syntax}{8}{3}{1}{90}
\subsecentry{Conditional Init Constructs}{8}{3}{2}{95}
\subsecentry{Sample Init File}{8}{3}{3}{96}
\secentry{Bindable Readline Commands}{8}{4}{99}
\subsecentry{Commands For Moving}{8}{4}{1}{99}
\subsecentry{Commands For Manipulating The History}{8}{4}{2}{99}
\subsecentry{Commands For Changing Text}{8}{4}{3}{101}
\subsecentry{Killing And Yanking}{8}{4}{4}{102}
\subsecentry{Specifying Numeric Arguments}{8}{4}{5}{103}
\subsecentry{Letting Readline Type For You}{8}{4}{6}{103}
\subsecentry{Keyboard Macros}{8}{4}{7}{104}
\subsecentry{Some Miscellaneous Commands}{8}{4}{8}{105}
\secentry{Readline vi Mode}{8}{5}{107}
\secentry{Programmable Completion}{8}{6}{107}
\secentry{Programmable Completion Builtins}{8}{7}{109}
\chapentry{Using History Interactively}{9}{113}
\secentry{Bash History Facilities}{9}{1}{113}
\secentry{Bash History Builtins}{9}{2}{113}
\secentry{History Expansion}{9}{3}{115}
\subsecentry{Event Designators}{9}{3}{1}{115}
\subsecentry{Word Designators}{9}{3}{2}{116}
\subsecentry{Modifiers}{9}{3}{3}{117}
\chapentry{Installing Bash}{10}{119}
\secentry{Basic Installation}{10}{1}{119}
\secentry{Compilers and Options}{10}{2}{119}
\secentry{Compiling For Multiple Architectures}{10}{3}{120}
\secentry{Installation Names}{10}{4}{120}
\secentry{Specifying the System Type}{10}{5}{120}
\secentry{Sharing Defaults}{10}{6}{121}
\secentry{Operation Controls}{10}{7}{121}
\secentry{Optional Features}{10}{8}{121}
\appendixentry{Reporting Bugs}{A}{127}
\appendixentry{Major Differences From The Bourne Shell}{B}{129}
\secentry{Implementation Differences From The SVR4.2 Shell}{B}{1}{133}
\appendixentry{Copying This Manual}{C}{135}
\secentry{GNU Free Documentation License}{C}{1}{135}
\subsecentry{ADDENDUM: How to use this License for your documents}{C}{1}{1}{141}
\unnumbchapentry{Index of Shell Builtin Commands}{10}{143}
\unnumbchapentry{Index of Shell Reserved Words}{10}{145}
\unnumbchapentry{Parameter and Variable Index}{10}{147}
\unnumbchapentry{Function Index}{10}{149}
\unnumbchapentry{Concept Index}{10}{151}