Index
[SYMBOL]
[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]
s command, debugger 2nd
scripts
comments in 2nd
examples in archive for
execute permission for
functions in
good practices for
options for, guidelines
order of precedence for
potential problems with
running
running as background job
running in subshells
when not to use bash for
whitespace in
SECOND environment variable
SECONDS environment variable
security
PATH variable and
privileged mode
restricted shell
suid bit and
system break-in scenario
Trojan horses
sed command
select statement 2nd
Bourne shell not supporting
POSIX support
selection sort example
semicolon (;)
statement separator
vi command
set command
-k option
-o and +o options 2nd
-r option
Bourne shell support
debugging options for
displaying settings of
emacs option 2nd
functrace option 2nd
ignoreeof option
noclobber option 2nd
noexec option 2nd
noglob option
nounset option
options for, list of
options for, setting on bash command line 2nd
pdksh support
posix option
privileged option 2nd
verbose option 2nd
vi option 2nd
xtrace option 2nd
set user ID (suid) bit
set wildcard construct
sh (Bourne shell) 2nd
compared to bash
compatibility with bash
shared object compilation
SHELL environment variable 2nd 3rd 4th 5th
shell execution directive
shell programming
[See scripts]
shell scripts
[See scripts]
shell variables 2nd
arithmetic
attributes of
braces syntax for
built-in
built-in, list of
checking value of
command substitution in
containing process ID
converting to environment variables
declaring as arrays 2nd
declaring as function names 2nd
declaring as integers 2nd
defining
deleting
displaying list of, with values
exporting to environment 2nd
for command-line editing
for mail
for prompting
in arithmetic expressions
naming 2nd 3rd
not supported by Bourne shell
positional parameters
quoting
read-only 2nd
reading values into
string operators for
using in commands
value of, as name of another variable
SHELLOPTS environment variable
shells 2nd 3rd 4th [See also bash]
Bourne (sh) 2nd 3rd
C shell (csh) 2nd
determining which shell is in use
history of
IEEE POSIX 1003.2 2nd
Korn (ksh) 2nd 3rd
login shell 2nd 3rd
on PC platforms
Public Domain Korn (pdksh)
restricted 2nd 3rd
standard shell 2nd
subshells
Tenex C (tcsh)
zsh
shift command 2nd
SHLVL environment variable
shopt command
Bourne shell support
extdebug option
options for, list of
options on bash command line for
show-all-if-ambiguous variable, readline
signals
control-key signals
fake
ignoring
kill command
listing
POSIX support
trapping
single quotes (')
around special characters
command line processing of
enclosing RETURN
in alias definition
when to use 2nd
slash (/)
// (pattern-matching and replacement operator)
division operator
in restricted shell
pattern-matching and replacement operator
vi command
soft limits
sort command 2nd
-n option
-r option
source command 2nd
Spafford, Gene (Practical UNIX and Internet Security)
special characters
backslash-escaping
control keys
quoting
Stallman, Richard
standard error
file descriptor for
prompts sent to
saving to a file
standard error and output file example 2nd
standard input
file descriptor for
reading commands from
standard output
file descriptor for
saving to a file 2nd
standard shell 2nd
statement separator
status
[See exit status of commands]
stepping, in debugger 2nd 3rd
Strang, John (Learning the UNIX Operating System)
string comparisons
string I/O
string operators
comparison
extended pattern matching operators
length operator
pattern matching operators
substitution operators
stty command 2nd
subprocesses [See also background jobs]
environment settings known to
subroutines
[See functions]
subshells
environment variables in
inheritance of
nested
scripts running in
substitution operators
substring expansion
suid (set user ID) bit
suspend command
switch statement
system administration
bash command options for
configuring and building bash
customizing environment
global customization
installing bash as login shell
installing bash as standard shell
obtaining bash
switching bash to POSIX mode
unpacking bash archive
system calls, pipelines invoking
System V, ps command
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