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Perl syscall Function
Description
This function calls the system call specified as the first element of the list, passing the remaining elements as arguments to the system call. If a given argument is numeric, the argument is passed as an int. If not, the pointer to the string value is passed.
Syntax
Following is the simple syntax for this function −
syscall EXPR, LIST
Return Value
This function returns -1 on failure of system call and values returned by system function on success.
Example
Following is the example code showing its basic usage −
#!/usr/bin/perl -w
require("syscall.ph");
$pid = syscall(&SYS_getpid);
print "PID of this process is $pid\n";
# To create directory use the following
$string = "newdir";
syscall( &SYS_mkdir, $string );
When above code is executed, it produces the following result −
PID of this process is 23705
perl_function_references.htm
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