[10/04/2011]

Homework #2:

Maximum number of MYPATH directories?
-- unlimited (upper level of 20?)

Executing command
-- no need to handle absolute paths on cmds
-- no need to handle relative paths on cmds
-- the '.' directory must be in MYPATH if a.out is to work

Running a process in the background:
---| repeat &


How do you handle ENTER in the while loop:

 while( 1 )
 {
   scanf( "%[^\n]", cmd );
   getchar();

   /* reset cmd */
   /* zero it out... */
 }


glob

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parent/child fork() model

-- a thread is a lightweight process
-- multiple threads reside/run within a single process
-- tradeoffs -- process context switch vs. thread context switch

-- Apache
-- parent process that pre-forks N child processes