Do manual build fail in Jenkins using shell script

Question

I would like to mark a Jenkins build to fail on one scenario for example:

if [ -f "$file" ] then     echo "$file found." else     echo "$file not found."     #Do Jenkins Build Fail fi 

Is it possible via Shell Script?

Answer: If we exit with integer 1, Jenkins build will be marked as failed. So I replaced the comment with exit 1 to resolve this.

Answer 1

All you need to do is exit 1.

if [ -f "$file" ] then     echo "$file found." else     echo "$file not found."     exit 1 fi 

Answer 2

To fail a Jenkins build from .NET, you can use Environment.Exit(1).

Also, see How do I specify the exit code of a console application in .NET?.