Answer Posted / ramesh

Both Perl's exec() function and system() function execute a
system shell command. The big difference is that system()
creates a fork process and waits to see if the command
succeeds or fails - returning a value. exec() does not
return anything, it simply executes the command. Neither of
these commands should be used to capture the output of a
system call. If your goal is to capture output, you should
use the

$result = system(PROGRAM);
exec(PROGRAM);

What rules must be followed by modules in perl.

992

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Explain '->' in perl?

928

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explain the various functions/directives in perl that allow you to include/import a module. Also, state the differences between them.

868

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1075

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1066

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1000

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1168

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928

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969

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Write a program to decode the data in the form using cgi programming

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What does this symbol mean '->'?

1009

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2293

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930

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992

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