How to write bash script to test if program crashes?

Question

I have a program x which sometimes crashes on certain input files.

How do I write a bash script that returns the following?

0 if the program x terminates fine or runs for longer than 1/20th of a second
1 if the program x segfaults

Note that the program will segfault or run forever, so I need to stop it somehow with the script. can you show me please

Thank you for any ideas

unxnut · Accepted Answer · 2013-05-05 22:48:23Z

2

Most of the programs when they do not terminate correctly return 0. That information can be gleaned from the bash variable $?. So, after you run the program, check if $? is 0. If it is, the program ran successfully. Otherwise, there was a problem.

This is, of course, assuming that the program is following proper conventions.

answered May 5, 2013 at 22:48

unxnut

8,8993 gold badges30 silver badges43 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

albatross Over a year ago

The program will segfault or run forever, so I need to stop it somehow with the script. can you show me please

Lynch Over a year ago

You can use timeout to stop a program after n seconds.

isaach1000 · Accepted Answer · 2013-05-05 22:50:16Z

1

echo $? should let you know whether or not the program succeeded.

http://www.devshed.com/c/a/BrainDump/Executing-Commands-with-bash/1/

answered May 5, 2013 at 22:50

isaach1000

1,8391 gold badge14 silver badges19 bronze badges

Collectives™ on Stack Overflow

How to write bash script to test if program crashes?

2 Answers 2

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related