Replacing a Process Image $-1\%$

The exec family of functions replaces the current process with another which is created according to the

arguments given to the exec function.

Study this family of functions by the "man" command:

$ man execl

$/$test$\_$exec.cpp

#include $$ cout $$ "fork program startingln";

pid $=$ fork$()$;

switch $($pid$)\{$

case $-1$:

cout $$ "Fork failure!ln$"$;

return $1$;

case $0$ :

message $=$ "This is the childln";

$n=5$;

break;

default:

message $=$ "This is the parentln";

n$=3$;

break;

$\}$

for $($int i$=0$; i Replacing a Process Image $-1\%$

The exec family of functions replaces the current process with another which is created according to the

arguments given to the exec function.

Study this family of functions by the "man" command:

$ man execl

Itest$\_$exec.cpp

#include ;$ls-$lDuplicating a Process Image $-1\%$

We can use fork to duplicate a process. The duplicated process will be run independently from its parent.

#include