Re: [Help-bash] eval backgrounds with & in variable string

[Greg Wooledge]

On Fri, Mar 14, 2014 at 12:29:28PM -0700, Jesse Molina wrote:
> address@hidden>eval echo 'one&uno&ichi'
> [3] 14201
> [4] 14202
> one
> -bash: uno: command not found
> -bash: ichi: command not found

> Okay, that's definitely not what I wanted.  Eval seems to have evaluated 
> my "&" characters into being a split and then tries to background those 
> commands.

Yes.  As expected.  Your command is identical to:

  echo one&uno&ichi

> Can I "set" something to make this work, or am I going to have to escape 
> these on input?

To make what work?  What's the goal?  If you just want to echo that
string, remove the eval and keep the quotes.

> While on the subject of eval, does anyone else have fun examples, known 
> pitfalls, and other interesting things?

http://mywiki.wooledge.org/BashFAQ/048 has some discussion, but is
somewhat light on examples.