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Re: Aliases - I learned something new

On 08/25/2017 10:00 AM, cyg Simple wrote:
> If the value of an alias ends in a space the word following the issuance
> of the alias command is also checked for alias expansion.

In fact, this behavior is POSIX-mandated, so that you can do things like:

alias exec='exec '

and get alias expansion on 'foo' when you do 'exec foo'

>  Example:
> $ alias t1='echo abc'
> $ alias t2='dev'
> $ t1 t2
> abc t2
> $ alias t1='echo abc '
> $ t1 t2
> abc def

Doesn't quite match what you typed above (dev vs. def), but illustrates
the point.

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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