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commit bash-20141219 snapshot

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Chet Ramey
2015-01-12 10:56:22 -05:00
parent 3699674c66
commit 5e37553a07
31 changed files with 35134 additions and 36 deletions
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doc/bashref.texi
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@@ -1875,12 +1875,16 @@ or when @var{parameter} is followed by a character that is not to be
interpreted as part of its name.
If the first character of @var{parameter} is an exclamation point (!),
and @var{parameter} is not a @var{nameref},
it introduces a level of variable indirection.
Bash uses the value of the variable formed from the rest of
@var{parameter} as the name of the variable; this variable is then
expanded and that value is used in the rest of the substitution, rather
than the value of @var{parameter} itself.
This is known as @code{indirect expansion}.
If @var{parameter} is a nameref, this expands to the name of the
variable referenced by @var{parameter} instead of performing the
complete indirect expansion.
The exceptions to this are the expansions of $@{!@var{prefix}*@}
and $@{!@var{name}[@@]@}
described below.