Pro Bash Programming: Scripting the GNU/Linux Shell

Index

Special Characters A B C D E F G H I K L M N O P Q R S T U V W XYZ

Special Characters

!(pattern-list), 92

!= operator, 20

# (hash), 5

#! (shebang), 5

$ (dollar sign), 33

$- parameter, 8

$! parameter, 8

$# parameter, 8, 53

$$ parameter, 8

$* parameter, 8

$? parameter, 8, 19

$@ parameter, 8, 29

$_ parameter, 8

$_KEY variable, 194

${!var} expansion, 52

${#var} expansion, 49

${var#PATTERN} expansion, 51

${var##PATTERN} expansion, 51

${var%PATTERN} expansion, 50, 70

${var%%PATTERN} expansion, 50

${var,PATTERN} expansion, 53

${var//PATTERN/STRING} expansion, 51

${var?message} expansion, 49

${var^PATTERN} expansion, 52

${var+alternate} expansion, 47–48

${var=default} expansion, 48

${var:?} expansion, 164

${var:?message} expansion, 49

${var:+alternate} ...