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In this case, open will run the command &quot;$ddump -D $elf&quot;, and create a filehandle named TEMP as a pipe from that program.<br />
When your program reads from TEMP, it will be reading the output from the $ddump program.
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In this case, open will run the command "$ddump -D $elf", and create a filehandle named TEMP as a pipe from that program.
When your program reads from TEMP, it will be reading the output from the $ddump program.

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I thought there is a file coupled with every file handle. &nbsp;Which file goes with TEMP filehandle. &nbsp;<br />
It looks like the output of ddump program are stored in TEMP filehandle, instead of a file.<br />
Am I understanding this correctly?<br />
<br />
Thanks.
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I thought there is a file coupled with every file handle.  Which file goes with TEMP filehandle.  
It looks like the output of ddump program are stored in TEMP filehandle, instead of a file.
Am I understanding this correctly?

Thanks.

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Quick Response. &nbsp;Almost Immediate. &nbsp;
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In the following code, what does open TEMP do? &nbsp;Is TEMP a file. &nbsp;ddump dumps the debugging information. &nbsp;Is it dumped in the TEMP file. &nbsp;If TEMP is created, in which directory can I find it?<br />
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open TEMP, &quot;$ddump -D $elf|&quot; or die(&quot;\nError dumping file!\n&quot;);
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In the following code, what does open TEMP do?  Is TEMP a file.  ddump dumps the debugging information.  Is it dumped in the TEMP file.  If TEMP is created, in which directory can I find it?

open TEMP, "$ddump -D $elf|" or die("\nError dumping file!\n");

open statement help needed

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