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commit bash-20140321 snapshot

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Chet Ramey
2014-04-07 10:46:02 -04:00
parent 47760781cc
commit e2f12fdf57
22 changed files with 2991 additions and 44 deletions
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doc/bashref.texi
+10 -5
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@@ -603,8 +603,8 @@ the command was terminated by signal @var{n}.
@cindex pipeline
@cindex commands, pipelines
A @code{pipeline} is a sequence of simple commands separated by one of
the control operators @samp{|} or @samp{|&}.
A @code{pipeline} is a sequence of one or more commands separated by
one of the control operators @samp{|} or @samp{|&}.
@rwindex time
@rwindex !
@@ -3502,6 +3502,11 @@ Cause a shell function to stop executing and return the value @var{n}
to its caller.
If @var{n} is not supplied, the return value is the exit status of the
last command executed in the function.
If @code{return} is executed by a trap handler, the last command used to
determine the status is the last command executed before the trap handler.
if @code{return} is executed during a @code{DEBUG} trap, the last command
used to determine the status is the last command executed by the trap
handler before @code{return} was invoked.
@code{return} may also be used to terminate execution of a script
being executed with the @code{.} (@code{source}) builtin,
returning either @var{n} or
@@ -5038,8 +5043,8 @@ next command is skipped and not executed.
@item
If the command run by the @code{DEBUG} trap returns a value of 2, and the
shell is executing in a subroutine (a shell function or a shell script
executed by the @code{.} or @code{source} builtins), a call to
@code{return} is simulated.
executed by the @code{.} or @code{source} builtins), the shell simulates
a call to @code{return}.
@item
@code{BASH_ARGC} and @code{BASH_ARGV} are updated as described in their
@@ -6731,7 +6736,7 @@ on that line are not affected by the new alias.
This behavior is also an issue when functions are executed.
Aliases are expanded when a function definition is read,
not when the function is executed, because a function definition
is itself a compound command. As a consequence, aliases
is itself a command. As a consequence, aliases
defined in a function are not available until after that
function is executed. To be safe, always put
alias definitions on a separate line, and do not use @code{alias}