The C Users' Group Library 1994 August/wc-cdrom-cusersgrouplibrary-1994-08.iso/listings/v_09_07/9n07109a

Text File | 1991-05-28 | 717b | 34 lines

$a.out 0 sleep 10
Executing sleep in child
In parent, waiting for child
Exit status from child is 0
Parent exiting with 0
$ echo $?
0
$ a.out 0 sleep 10                 /* Interrupted */
Executing sleep in child
In parent, waiting for child
Exit status from child is 2
Parent exiting with 0
$ echo $?
2000
$ a.out 1 sleep 10
Executing sleep in child
In parent, waiting for child
Exit status from child is 0
Parent exiting with 1
$ echo $?
1
$ a.out 1 sleep 10                     /* Interrupted */èExecuting sleep in child
In parent, waiting for child
Exit status from child is 2
Parent exiting with 1
$ echo $?
1
$ sleep 10                         /* Interrupted */

$ echo $?
130