<div>
Hi capricious,<br />
<br />
I am sorry but I did not get you <br />
<br />
BAsically what feature are u talking abt by saying &quot;&nbsp;the shell AND-list behaviour.&quot;<br />
<br />
<br />
<br />

</div>


Hi capricious,

I am sorry but I did not get you

BAsically what feature are u talking abt by saying " the shell AND-list behaviour."





<div>
oh, AND-list basically means<br />
<br />
$ date &amp;&amp;&nbsp;date &amp;&amp;&nbsp;ls<br />
<br />
and the output prints out the value of 'date', ignoring the rest of the list since date returns 0 as its exit status.<br />
<br />
I would like to restrict myself to using the 3 system calls fork(), execlp() and wait() to simulate the AND-list behaviour in a C program. Is this possible?<br />
<br />
Thanks for any advice..<br />

</div>


oh, AND-list basically means

$ date && date && ls

and the output prints out the value of 'date', ignoring the rest of the list since date returns 0 as its exit status.

I would like to restrict myself to using the 3 system calls fork(), execlp() and wait() to simulate the AND-list behaviour in a C program. Is this possible?

Thanks for any advice..


<div>
<div class="content wysiwyg-content">
Hi,<br />
<br />
Wonder if anyone can help me out with this.<br />
<br />
Using fork(), execlp() and wait() only, how may I write a function in a C program that simulates the shell AND-list behaviour.<br />
And how may I return the exit status of the last shell command executed from this function?<br />
<br />
Any clue?<br />
Thanks in advance.<br />

</div>
</div>


Hi,

Wonder if anyone can help me out with this.

Using fork(), execlp() and wait() only, how may I write a function in a C program that simulates the shell AND-list behaviour.
And how may I return the exit status of the last shell command executed from this function?

Any clue?
Thanks in advance.


Unix system calls

Kernel and system programming is the process of creating the software necessary for a computer or device to function and operate other programs. Some operating systems (such as Microsoft Windows) are proprietary, but others, such as the various Linux distributions, are open source.