[colug-432] Pausing

[Steve VanSlyck]

> What makes you think /dev/null is not writable?

Because I get this: steve at vslaw.pro in /home/steve> sudo ping localhost
-c 2 -i 3 > /dev/null [sudo] password for steve:

So . . . I need to chagne read to echo. Wilco.

On Fri, May 15, 2015, at 21:04, Rick Hornsby wrote:
>
>
>
Steve VanSlyck wrote:
>> Hi Rick.
>>
>> Here are the lines from the script:
>>
>> # Install the dialog utility
>> read -p "Invisible Island's dialog utility will be installed. See
 http://invisible-island.net/dialog ."
>> sleep 2s # or ping localhost -c 2 -i 2 > null yum -y install dialog
> Right, so the reason it is pausing is because of your read command.
That line is waiting for an EOF, which comes when you finally hit enter.
>
> http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_08_02.html
>> (I cannot send to /dev/null because that requires sudo and that's
 a pain for testing.)
> Uh ...? That doesn't sound right -or- like a badly configured host for
this reason:
>
> http://man7.org/linux/man-pages/man4/null.4.html
>
>
NOTES:
>
If these devices are not writable and readable for all users, many
>
programs will act strangely.
>
>
What makes you think /dev/null is not writable?
>
>
>> For each one, execution stops until I press <enter>
>>
>>
>>
>> On Fri, May 15, 2015, at 20:44, Rick Hornsby wrote:
>>>
>>>
>>> Steve VanSlyck wrote:
>>>> I'd
 tried sleep 3s after trying sleep 3, which didn't work.
>>>
>>> Need more context. Sleep is the correct command for pausing.
>>>
>>>
>>> ./sleep_test.sh Fri May 15 19:41:57 CDT 2015 Fri May 15 19:42:00 CDT
>>> 2015 aztec:bin rhornsby$ cat sleep_test.sh
>>> #!/bin/bash
>>> date sleep 3 date
>>>
>>>>
>>>> Unfortunately your corrected ping local host doesn't work eether.
 Want's me to press <enter>.
>>>>
>>>>
>>>> On Fri, May 15, 2015, at 20:32, Mike Plemmons wrote:
>>>>> Try
>>>>>
sleep 3
>>>>>
ping localhost -c 2 -I 3 > /dev/null

>>>>> On May 15, 2015
8:24 PM, "Steve VanSlyck" <s.vanslyck at postpro.net> wrote:
>>>>>>
>>>>>> I tried both of these in my script and neether one would
continue.
>>>>>>
>>>>>> Both worked fine at the command line.
>>>>>>
>>>>>> Hints?
>>>>>>
>>>>>> sleep 3s
>>>>>>
>>>>>> ping localhost -c 2 -i 3 > nul
>>>>>>
>>>>>>
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