Re: need a way to ignore aliases in shell functions

[Chet Ramey]

Ian Macdonald wrote:

> When writing programmable completion functions, it would be very handy
> to be able to instruct bash to ignore aliases inside functions. It's
> often necessary to call things like sed, awk and grep inside completion
> functions and, if the user has aliased these commands, all manner of
> unexpected subtle errors can occur.

There's nothing preventing you from adding this protection.  Aliases
are expanded when a shell function is read and parsed, not when it is
executed.  One simply needs to bracket the programmable completion
function definitions with `shopt -u expand_aliases' and a corresponding
`shopt -s expand_aliases'.

Chet