I'm trying to execute the following command using Java
Process acquirInterfaces = Runtime.getRuntime().exec("dumpcap -D");
and getting error as
java.io.IOException: Cannot run program "dumpcap": java.io.IOException: error=2, No such file or directory
Linux box where im executing this command has got installed with dumpcap which is located under (/usr/local/bin)
What is the mistake im doing, please help
Use the following line, with exact path:
Process acquirInterfaces = Runtime.getRuntime().exec("/usr/local/bin/dumpcap -D");
Then try
Process acquirInterfaces = Runtime.getRuntime().exec("/usr/local/bin/dumpcap -D");
And in case you have any problem with the slash, use File.separator:
Process acquirInterfaces = Runtime.getRuntime().exec(File.separator + "usr" + File.separator + "local" + File.separator + "bin" + File.separator + "dumpcap -D");
As noted, you need to use the full name of the executable. The reason for this is that in Unix systems, searching for commands on the path is handled by the shell, not the system call itself, so when you're running a command by using a system call, you have to specify exactly where to find the program to run.
