#4 Replace system() with system call

[Jerry James]

The system() function is used in several places to execute external commands. However, many of these are unnecessary. Rather than forking off a child process which runs a shell, which execs a program, some of the same ends can be accomplished by a system call from the original process. The attached patch converts several system() invocations to equivalent system calls.

[Jerry James]

Patch to convert system() to system call