[OT] Using aliases or functions in bash script

[T o n g <mlist4suntong@yahoo.com>]

On Wed, 23 Jan 2008 20:47:15 -0900, Ken Irving wrote:

>> I'm wondering if you have read my OP or not. Read it again pls.
> 
>     source ~/.bashrc

Guess that I am having bad lucks now, having two people replied without
even reading my question, and the two replies are the only replies that I
get... 

Here is the full OP -- let me try for the last time:

Hi, 

An advanced bash alias expansion question -- 
How can I use my aliases or functions in my bash script?

I have the following alias and function defined in my ~/.bashrc:

  $ alias rd
  alias rd='rmdir'

  $ type dt
  dt is a function
  dt () 
  { 
      pushd +$1
  }

How can I use them in my script?

Looking through the man pages, I think the following content is related 
to my question:

       Aliases  are not expanded when the shell is not interactive, unless the
       expand_aliases shell option is set using shopt.

       [-+]O [shopt_option]
                 shopt_option  is  one  of  the  shell options accepted by the
                 shopt  builtin  (see  SHELL  BUILTIN  COMMANDS  below).    If
                 shopt_option is present, -O sets the value of that option; +O
                 unsets it.  If shopt_option is not supplied,  the  names  and
                 values  of the shell options accepted by shopt are printed on
                 the standard output.  If the invocation  option  is  +O,  the
                 output  is displayed in a format that may be reused as input.

              expand_aliases
                      If set, aliases are expanded as  described  above  under
                      ALIASES.  This option is enabled by default for interac-
                      tive shells.

And this is what I've tried: 

  $ bash -c 'shopt -s expand_aliases; alias rd'
  bash: line 0: alias: rd: not found

  $ bash -O expand_aliases -c 'rd /tmp/ttt; alias rd; dt bin; type dt'
  bash: rd: command not found
  bash: line 0: alias: rd: not found
  bash: dt: command not found
  bash: line 0: type: dt: not found

Looking for the answer myself, I found a similar symptom has been reported
as bug 148505: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=148505
And it is reported as being fixed. 

Am I hitting a new bug or I'm doing something wrong? Please comment,
otherwise I'm going to file a bug report.

Thanks

PS. I even tried the following but it didn't work either:

  $ bash -O expand_aliases -c '. ~/.bashrc; (rd /tmp/ttt; alias rd; dt bin; type dt)'


-- 
Tong (remove underscore(s) to reply)
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