\pcontentsline {0}{Aim}{2}{3}{}
\pcontentsline {0}{Why Shell Scripting?}{3}{4}{}
\pcontentsline {0}{Where to get more information}{4}{5}{}
\pcontentsline {0}{The Shell is an Interpreter}{5}{6}{}
\pcontentsline {0}{The Shebang}{6}{7}{}
\pcontentsline {0}{Making the script executable}{7}{8}{}
\pcontentsline {0}{Special Characters}{8}{9}{}
\pcontentsline {0}{Special Characters---continued: 2}{9}{10}{}
\pcontentsline {0}{Special Characters---continued: 3}{10}{11}{}
\pcontentsline {0}{Quoting}{11}{12}{}
\pcontentsline {0}{Quoting---2}{12}{13}{}
\pcontentsline {0}{Quoting---When to use it?}{13}{14}{}
\pcontentsline {0}{True and False}{14}{15}{}
\pcontentsline {0}{Variables---1}{15}{16}{}
\pcontentsline {0}{Variables---Assignments}{16}{17}{}
\pcontentsline {0}{Variables---Local to Script}{17}{18}{}
\pcontentsline {0}{Variables---Unsetting Them}{18}{19}{}
\pcontentsline {0}{Command-line Parameters}{19}{20}{}
\pcontentsline {0}{Special Built-in Variables}{20}{21}{}
\pcontentsline {0}{Variables: use Braces \texttt {\$\{\dots \}}}{21}{22}{}
\pcontentsline {0}{Braces and Parameters after \textbf {\$9}}{22}{23}{}
\pcontentsline {0}{More about Quoting}{23}{24}{}
\pcontentsline {0}{Command Substitution}{24}{25}{}
\pcontentsline {0}{Command Substitution---Example}{25}{26}{}
\pcontentsline {0}{Conditions---String Comparisons}{26}{27}{}
\pcontentsline {0}{Conditions---Integer Comparisons}{27}{28}{}
\pcontentsline {0}{Conditions---File Tests, NOT Operator}{28}{29}{}
\pcontentsline {0}{Conditions---Combining Comparisons}{29}{30}{}
\pcontentsline {0}{Arithmetic Assignments}{30}{31}{}
\pcontentsline {0}{Arithmetic Expressions with \texttt {\$((\dots ))}}{31}{32}{}
\pcontentsline {0}{Arithmetic Conditions with \texttt {((\dots ))}}{32}{33}{}
\pcontentsline {0}{\texttt {if} Statement}{33}{34}{}
\pcontentsline {0}{\texttt {while} Statement}{34}{35}{}
\pcontentsline {0}{\texttt {for} Statement}{35}{36}{}
\pcontentsline {0}{\texttt {for} Loops: Another Example}{36}{37}{}
\pcontentsline {0}{\texttt {for} Loops: second, C-like syntax}{37}{38}{}
\pcontentsline {0}{\texttt {break} and \texttt {continue}}{38}{39}{}
\pcontentsline {0}{Blocks: \texttt {\{\dots \}}}{39}{40}{}
\pcontentsline {0}{Error Handling: \texttt {\textbar \textbar }, \texttt {\&\&} and \texttt {exit}}{40}{41}{}
\pcontentsline {0}{Output: \texttt {echo} and \texttt {printf}}{41}{42}{}
\pcontentsline {0}{Input: the \texttt {read} Command}{42}{43}{}
\pcontentsline {0}{\texttt {set}: Splitting a Multi-Word Variable}{43}{44}{}
\pcontentsline {0}{More about \texttt {set}, and \texttt {IFS}}{44}{45}{}
\pcontentsline {0}{Example: Changing \texttt {IFS}}{45}{46}{}
\pcontentsline {0}{\texttt {case} Statement}{46}{47}{}
\pcontentsline {0}{\texttt {case} Statement: Example}{47}{48}{}
\pcontentsline {0}{\texttt {shift}: Move all Parameters Up}{48}{49}{}
\pcontentsline {0}{\texttt {shift}: Many Places}{49}{50}{}
\pcontentsline {0}{Command-Line Options---1}{50}{51}{}
\pcontentsline {0}{Command-Line Options---2}{51}{52}{}
\pcontentsline {0}{Command-Line Options---3}{52}{53}{}
\pcontentsline {0}{\texttt {getopts}: Command-Line Options---4}{53}{54}{}
\pcontentsline {0}{\texttt {getopts}: Command-Line Options---5}{54}{55}{}
\pcontentsline {0}{Temporary Files: \texttt {mktemp}}{55}{56}{}
\pcontentsline {0}{Signals that may Terminate your Script}{56}{57}{}
\pcontentsline {0}{Signals: \texttt {trap}}{57}{58}{}
\pcontentsline {0}{Signals: \texttt {trap} Example}{58}{59}{}
\pcontentsline {0}{Functions}{59}{60}{}
\pcontentsline {0}{Parameters in Functions}{60}{61}{}
\pcontentsline {0}{Example, Calling a Function}{61}{62}{}
\pcontentsline {0}{Debugging Shell Scripts---1}{62}{63}{}
\pcontentsline {0}{Debugging Shell Scripts---2}{63}{64}{}
\pcontentsline {0}{Writing Shell Scripts}{64}{65}{}
\pcontentsline {0}{Useful External Programs---1}{65}{66}{}
\pcontentsline {0}{Useful External Programs---2}{66}{67}{}
\pcontentsline {0}{Regular Expressions}{67}{68}{}
\pcontentsline {0}{What is in a Regular Expression?}{68}{69}{}
\pcontentsline {0}{Literal characters}{69}{70}{}
\pcontentsline {0}{Character Classes: \texttt {[\dots ]}}{70}{71}{}
\pcontentsline {0}{Negated Character Classes: \texttt {[\textasciicircum \dots ]}}{71}{72}{}
\pcontentsline {0}{Match Any Character}{72}{73}{}
\pcontentsline {0}{Matching the Beginning or End of Line}{73}{74}{}
\pcontentsline {0}{Match Repetitions: \texttt {*}, \texttt {?}, \texttt {+}, \texttt {\{n\}}, \texttt {\{n,m\}}}{74}{75}{}
\pcontentsline {0}{Matching Alternatives: ``\texttt {\textbar }''}{75}{76}{}
\pcontentsline {0}{Putting it All Together: Examples}{76}{77}{}
\pcontentsline {0}{Basic \texttt {awk}}{77}{78}{}
\pcontentsline {0}{What Does \texttt {awk} Do?}{78}{79}{}
\pcontentsline {0}{\texttt {awk} Examples}{79}{80}{}
\pcontentsline {0}{\texttt {sed}---the Stream Editor}{80}{81}{}
\pcontentsline {0}{\texttt {sed}---Backreferencees}{81}{82}{}
\pcontentsline {0}{\texttt {sed}---Backreferencees: Example}{82}{83}{}
\pcontentsline {0}{\texttt {find} Examples}{83}{84}{}
\pcontentsline {0}{Finding SUID Programs}{84}{85}{}
\pcontentsline {0}{A \texttt {find} Example with Many Options}{85}{86}{}
\pcontentsline {0}{\texttt {rpm} Database Query Commands}{86}{87}{}