in my linux system , we have a program ( it is a binary program , I do not have the source code ) which will do something in the database . In the program , there is a exit function , when select exit , it will quit the program and go to linux shell , this program works fine.

Now , I would like to do modify for this program -- I would like to send out a mail to me once quitted this program , but how to know (detect) the program is quitted ?

thx


** may be my question is not clear enough , I will reply it if anything is not clear.

You would rather try to construct a wrapper script. It means it executes the binary as is and finally sends a message. Modifying a binary without knowing/having the source is not an easy task, you must know assembler very well and also you need to reverse engineer that code.

Create a shell script which find its pid from ps output and check whether it is exists into it on specific time interval else send a email .. I will create script too but little later on..