Redirect output of echo to file through Java

Question

Possible Duplicate:
ProcessBuilder redirecting output

The following code:

ProcessBuilder pb = new ProcessBuilder(new String[] {"echo", "some text", ">", "test"});

keeps returning "some text > test".

What am I doing wrong?

EDIT:

this worked

ProcessBuilder pb = new ProcessBuilder(new String[] {"bash", "-c", "echo sometext > test"});

Accepted answer from [link](http://stackoverflow.com/questions/5740390/printing-my-macs-serial-number-in-java-using-unix-commands/5740673#5740673) worked — pedja, Jan 28 '13 at 12:11
Cool. Glad you got it sorted, and thanks for reporting back. — Andrew Thompson, Jan 28 '13 at 12:15

score 5 · Accepted Answer · edited Apr 15 '21 at 13:49

5

Try following

    ProcessBuilder pb = 
new ProcessBuilder("cmd.exe", "/c" ,"echo", "some text", ">", "test");

This is for windows

Actually 'Echo' is not a command its an internal command of the shell (cmd.exe) in windows and "bash" in linux or unix. So , for Unix/Linux

    ProcessBuilder pb = 
new ProcessBuilder("bash", "-c","echo \"some text\" >test");

edited Apr 15 '21 at 13:49

Tyutyutyu

answered Jan 28 '13 at 11:59

TheWhiteRabbit

Doesn't work, still returns everything after **echo** – pedja Jan 28 '13 at 12:02
Strange thing is that when i use same thing in Android it works fine, but in pure java on pc it wont redirect – pedja Jan 28 '13 at 12:04
link you added is for windows, i dont know if it makes any difference but im on linux – pedja Jan 28 '13 at 12:06
edited answer with **Reason** and *Solution* for *Windows* and *Unix* – TheWhiteRabbit Jan 28 '13 at 12:18

1 Answers1