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Chapter 10  -  Processes and Signals.


system1.c   -  A program that calls another program using the system command.

system2.c   -  system1.c revised so that the other program is run in the background.

pexec.c    -  A program that replaces a process image using the execlp command.

fork1.c     -  A program that duplicates a process image using the fork command.

wait.c     -  A program that uses the wait command to wait for a child process to finish.

fork2.c    -  fork1.c changed so thata zombie process is created.

upper.c    -  A simple program to convert all characters to upper case.

file.txt   -  A short text file for use with upper.c.

useupper.c -  A program that demonstrates that open file descriptors are preserved across a call to execl.

ctrlc1.c    -  A simple signal handling program which reacts to SIGINT.

alarm.c    -  A program which sends a signal to itself.

ctrlc2.c   -  A signal handling progam that uses sigaction rather than signal.