Не может заставить expand_aliases вступать в силу

Псевдонимы не доступны на той же строке или в той же функции, где они определены.

Со страницы Bash man:

       The rules concerning the definition and use  of  aliases  are  somewhat
       confusing.   Bash  always  reads  at  least  one complete line of input
       before executing any  of  the  commands  on  that  line.   Aliases  are
       expanded  when  a command is read, not when it is executed.  Therefore,
       an alias definition appearing on the same line as another command  does
       not  take  effect  until  the next line of input is read.  The commands
       following the alias definition 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 com‐
       pound 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 alias in  com‐
       pound commands.

       For almost every purpose, aliases are superseded by shell functions.

В Справочном руководстве по Bash сказано

Почти для всех целей функции оболочки предпочтительнее, чем псевдонимы.

вместо последнего предложения выше [выделение мое]. Я считаю псевдонимы удобством командной строки, а не чем-то, что следует использовать в скриптах (включая те, которые состоят исключительно из bash -c однострочных слов).