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Learning the bash Shell, 3rd Edition by Cameron Newham

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Index

A note on the digital index

A link in an index entry is displayed as the section title in which that entry appears. Because some sections have multiple index markers, it is not unusual for an entry to have several links to the same section. Clicking on any link will take you directly to the place in the text in which the marker appears.

Symbols

! (exclamation point)
!= (not equal to operator), Integer Variables and Arithmetic
!= (string comparison operator), String comparisons
conditional not operator, Combinations of Exit Statuses
debugger command, Commands
environment variable, Built-In Shell Variables
event designators, History Expansion
extended pattern-matching operator, Extended Pattern Matching
logical not operator, Integer Variables and Arithmetic
negation operator, File attribute checking
negation wildcard, Filenames, Wildcards, and Pathname Expansion
process ID shell variable, Process ID Variables and Temporary Files
" (double quotes)
arithmetic expressions in, Integer Variables and Arithmetic
around shell variables, Variables and Quoting
around special characters, Quoting
backslash preceding, Quoting Quotation Marks
command line processing of, Quoting
# (hash mark)
## (pattern-matching operator), Patterns and Pattern Matching
array element length operator, Arrays
comments, Syntax of String Operators
environment variable, Positional Parameters, Built-In Shell Variables
length operator, Length Operator
pattern-matching operator, Patterns and Pattern Matching, Advanced Examples: pushd and popd ...

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