Invoking shell from java, it complaints "stty: standard input: Invalid argument"

Question

Hi, everybody. I invoked shell command by Process class of java and it gave "stty: standard input: Invalid argument" no matter the command is right or wrong (normal output of shell command is shown too). If I run the shell command in shell, no such error message shows. I can't figure out why.

Command is something lik this {"/bin/csh", "-c", "echo hello"}

Thanks

Answer 1

You are invoking the stty command from your .profile, or .bash_profile. You'll have to redirect its standard error to /dev/null.

stty blah blah blah 2>/dev/null

stty can't deal with the pseudo-tty that Java provides in shelling out.

Answer 2

Quoth the documentation for java.lang.Process:

"The methods that create processes may not work well for special processes on certain native platforms, such as native windowing processes, daemon processes, Win16/DOS processes on Microsoft Windows, or shell scripts. The created subprocess does not have its own terminal or console."

Perhaps you would like the java.lang.ProcessBuilder, instead.

Answer 3

Have you look here. I managed to run some commands like this

Answer 4

Try using the -f option of csh to disable the reading of the .chsrc and .login files:

    {"/bin/csh", "-cf", "echo hello"}