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commit bash-20111229 snapshot

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Chet Ramey
2012-01-09 08:37:11 -05:00
parent eb4206df36
commit 45c0f7f8e8
38 changed files with 22796 additions and 18994 deletions
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doc/bashref.texi
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@@ -1119,7 +1119,7 @@ True if either @var{expression1} or @var{expression2} is true.
@end table
@noindent
The @code{&&} and @code{||} operators do not evaluate @var{[Bexpression2} if the
The @code{&&} and @code{||} operators do not evaluate @var{expression2} if the
value of @var{expression1} is sufficient to determine the return
value of the entire conditional expression.
@end table
@@ -1961,6 +1961,9 @@ array in turn, and the expansion is the resultant list.
This expansion modifies the case of alphabetic characters in @var{parameter}.
The @var{pattern} is expanded to produce a pattern just as in
filename expansion.
Each character in the expanded value of @var{parameter} is tested against
@var{pattern}, and, if it matches the pattern, its case is converted.
The pattern should not attempt to match more than one character.
The @samp{^} operator converts lowercase letters matching @var{pattern}
to uppercase; the @samp{,} operator converts matching uppercase letters
to lowercase.
@@ -3041,11 +3044,25 @@ Change the current working directory to @var{directory}.
If @var{directory} is not supplied, the value of the @env{HOME}
shell variable is used.
Any additional arguments following @var{directory} are ignored.
If the shell variable @env{CDPATH} exists, it is used as a search path.
If the shell variable
@env{CDPATH} exists, it is used as a search path:
each directory name in @env{CDPATH} is searched for
@var{directory}, with alternative directory names in @env{CDPATH}
separated by a colon (@samp{:}).
If @var{directory} begins with a slash, @env{CDPATH} is not used.
The @option{-P} option means to not follow symbolic links; symbolic
links are followed by default or with the @option{-L} option.
The @option{-P} option means to not follow symbolic links: symbolic links
are resolved while @code{cd} is traversing @var{directory} and before
processing an instance of @samp{..} in @var{directory}.
By default, or when the @option{-L} option is supplied, symbolic links
in @var{directory} are resolved after @code{cd} processes an instance
of @samp{..} in @var{directory}.
If @samp{..} appears in @var{directory}, it is processed by removing the
immediately preceding pathname component, back to a slash or the beginning
of @var{directory}.
If the @option{-e} option is supplied with @option{-P}
and the current working directory cannot be successfully determined
after a successful directory change, @code{cd} will return an unsuccessful
@@ -4517,7 +4534,7 @@ Enable @samp{!} style history substitution (@pxref{History Interaction}).
This option is on by default for interactive shells.
@item -P
If set, do not follow symbolic links when performing commands such as
If set, do not resolve symbolic links when performing commands such as
@code{cd} which change the current directory. The physical directory
is used instead. By default, Bash follows
the logical chain of directories when performing commands