Hello list,
Could any one tell me a nice tutorial to learn about fork()ing in perl.
I want to accomplish following task with fork function. But i am not
sure this can be done with fork()?
I have a lengthy Perl script running on a 4 processor machine. At one
point of time i have to execute four shell commands / mysql quries from
four different batch files. Currently i run them one after other. Can i
use fork at this place so that i can fire all 4 mysql quries
simultaneously and collect the results back to main process.
portion of script follows ...
#!/usr/bin/perl
.............
...........
$var1=`mysql -h localhost -u xx -pyy filter < batchfile1.sql |tail -1`;
$var2=`mysql -h localhost -u xx -pyy filter < batchfile2.sql |tail -1`;
$var3=`mysql -h localhost -u xx -pyy filter < batchfile3.sql |tail -1`;
$var4=`mysql -h localhost -u xx -pyy filter < batchfile4.sql |tail -1`;
$total=$var1+$var2+$var3+$var4;
NOTE : I dont want to use Perl-DBI.
Many thanks in advance....
--
Ra. Gowthaman,
Graduate Student,
Bioinformatics Lab,
Malaria Research Group,
ICGEB , New Delhi.
INDIA
Phone: 91-9811261804
91-11-26173184; 91-11-26189360 #extn 314
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