On Fri, 12 Nov 2010, wucan wrote:
On 11/12/2010 06:09 AM, Thomas Dickey wrote:
On Thu, 11 Nov 2010, Gaetan Nadon wrote:
According to "man sh" on my Debian distro:
That's probably the bash manpage, since you're quoting from it.
s/bash/dash/
fwiw, man bash gives
local [option] [name[=value] ...]
For each argument, a local variable named name is created, and
assigned value. The option can be any of the options accepted
by declare. When local is used within a function, it causes the
variable name to have a visible scope restricted to that func-
tion and its children. With no operands, local writes a list of
local variables to the standard output. It is an error to use
local when not within a function. The return status is 0 unless
local is used outside a function, an invalid name is supplied,
or name is a readonly variable.
...
BUGS
...
There are some subtle differences between bash and traditional versions
of sh, mostly because of the POSIX specification.
man dash gives
Variables may be declared to be local to a function by using a local com-
mand. This should appear as the first statement of a function, and the
syntax is
local [variable | -] ...
Local is implemented as a builtin command.
...
HISTORY
dash is a POSIX-compliant implementation of /bin/sh that aims to be as
small as possible. dash is a direct descendant of the NetBSD version of
ash (the Almquist SHell), ported to Linux in early 1997. It was renamed
to dash in 2002.
(neither identifies it as an extension, and dash is supposed to use fewer
extensions, making scripts based on it more portable).
--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net
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