This is an appendix to Understanding Unix/Linux Programming written for people interested in Ada programming on POSIX systems.

A Programmable Shell: Shell Variables and the Environment

Section 9.3, page 286-293

Source code for smsh1:

smsh1.adb
shell_utilities.ads
shell_utilities.adb

We compile and test smsh1:

% gnatmake -P smsh1
[...]
% ./smsh1
> ps -f
UID        PID  PPID  C STIME TTY          TIME CMD
sparre   13356 13355  0 21:50 pts/1    00:00:01 -zsh
sparre   28306 13356  0 22:30 pts/1    00:00:00 ./smsh1
sparre   28334 28306  0 22:30 pts/1    00:00:00 ps -f
press Ctrl-D here
%

Programming exercises, pages 281-282

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Collected examples:: posix-in-ada.zip
Based on:: Understanding Unix/Linux Programming, Bruce Molay, ISBN 0-13-008396-8.
Main page:: http://edb.jacob-sparre.dk/Posix_in_Ada/
Written by:: Jacob Sparre Andersen.
Latest update:: 11th of September, 2007