Re: what is 2>&1 ? why not & only ?

[Dancer]

Evren Yurtesen wrote:
> 
> hello,
> I was looking into the RunCache script and I have
> seen that 2>&1 is used for backgrounding the job
> but why not & only ?
> what is the difference?

2>&1 doesn't background a job. 2>&1 redirects output going to
file-handle 2 (stderr) to file handle 1 (stdout), so that stderr and
stdout combine into a single redirectable output stream.

D