I tried to use "read -t 0" to check if there is any data on the STDIN or not.
The man page said:
If timeout is 0, read returns success if input is available on the specified
file descriptor, failure otherwise.
Maybe I made a mistake but I tested and I got variable results:
arpad@terminus ~ $ f
On 2013. October 4. 14:51:00 Pierre Gaston wrote:
> On Fri, Oct 4, 2013 at 2:20 PM, Kunszt Árpád
...
>
>
> There is a race condition, you cannot know if echo will run before read.
I see, and it's logical. But this stills confuses me.
arpad@terminus ~ $ for(( i=0; i<10
Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: x86_64-pc-linux-gnu-gcc
Compilation CFLAGS: -DPROG
2010-05-03 21:25 keltezéssel, Greg Wooledge írta:
> On Mon, May 03, 2010 at 07:49:12PM +0200, Kunszt Árpád wrote:
>
>> Description:
>> If the last command in a {...} has && and fails and the {...}
>> has an || outside then the outside command will be exec
