Question

I am trying to create a GUI using java swing. From there I have to run linux system commands. I tried using exec(). But the exec() function is unable to parse the string if it contains single quotes. The code which I have used is as follows-

Process p = Runtime.getRuntime().exec("cpabe-enc pub_key message.txt '( it_department or ( marketing and manager ) )'")
BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));

But I am getting error when I run the program as–syntax error at "'(".

The same command runs when I write

Process p = Runtime.getRuntime().exec("cpabe-enc pub_key message.txt default")

Please help. Thanks in advance for your help.

Answer 1

Split up the parameters into an array instead, one string for each argument, and use the exec-method that takes as String[] instead, that generally works better for arguments.
Somethign along the lines of:

Runtime.getRuntime().exec(new String[] {"cpabe-enc", "pub_key", "message.txt", "( it_department or ( marketing and manager ) )"});

or whatever what your exact parameters are.