java.io.IOException:Cannot run program "sh" (in directory"c:\cygwin\bin\test"):CreateProcess error=2.The system cannot find file specified

Question

I am running shell scripts with the help of java and cygwin. When i am running my code in windows xp it works fine. Now i am trying to run same code on windows 7 i am getting above error.

(java.io.IOException)java.io.IOException:
Cannot run program "sh" (in directory"c:\cygwin\bin\test"):
CreateProcess error=2.The system cannot find file specified

Why this error occurred.I have set my path for cygwin (PATH=.;c:\cygwin\bin) How to avoid this.

ProcessBuilder pb = new ProcessBuilder ();
pb.directory(new File("C:\\cygwin\\bin\\Test\\"));
File shellfile = new File("app.sh");//File name with extension
System.out.println(shellfile.getCanonicalPath());

But it is giving the output as E:\NIRAJ\example\app.sh which is in my java program. even i am setting up pb.directory to the path.

if i check System.out.print(pb.directory()); it gives me output C:\cygwin\bin\Test

try to run i with admin privileges. Start command line with admin privileges then run the java from command line (or start your IDE with the rights) — Hurda
– Hurda, Commented Feb 23, 2012 at 8:41
@programmer_1: Test is my directory.inside this directory app.sh is the shell script file — Code Hungry
– Code Hungry, Commented Feb 23, 2012 at 8:52

thanos.a · Accepted Answer · 2021-07-20 13:05:32Z

1

In PATH variable, you need to put cygwin's bin directory before any other Windows' paths.

Do this:

PATH=c:\cygwin\bin:RestWindowsPaths

Not that:

PATH=RestWindowsPathVariables:c:\cygwin\bin

edited Jul 20, 2021 at 13:05

answered Mar 28, 2013 at 19:05

thanos.a

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Ved · Accepted Answer · 2012-02-23 09:22:24Z

0

First try to get the path of specified file first to ensure it:

I am not much sure but this may lead you one step ahead :

File file = new File("app.sh");//File name with extension
System.out.println(file.getCanonicalPath());

This should print : c:\cygwin\bin\test Also use separator like this instead : c:\\cygwin\\bin\\test

Hope this helps.

UPDATE

String myCommand = "c:\\cygwin\\bin\\test\\cygbin";
String myArg = PATH_TO_shellscript+"app.sh";
ProcessBuilder p = new ProcessBuilder(myCommand, myArg).start();

edited Feb 23, 2012 at 9:22

answered Feb 23, 2012 at 8:54

Ved

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4 Comments

Ved Over a year ago

So how it will run since your app.sh is in example directory and you are expecting in it Test ? also you should run the command with cygbin.exe like this : cygbin.exe PATH/app.sh assuming cygbin is your executable.

Code Hungry Over a year ago

i am coping all the required files to the test folder. then setting pb.directory(new File("C:\\cygwin\\bin\\Test\\")); then executing the command and it is working fine with windows xp.

Code Hungry Over a year ago

CYGWIN_NT-6.1-WOW64 1.7.9(0.237/5/3)

Code Hungry Over a year ago

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