Using Java PrcoessBuilder to run Python remote file
2
I am trying to execute a python file (remote) using java Process builder with the following code.
List<String> commands = new ArrayList<String>();
commands.add("/bin/sh");
commands.add("-c");
commands.add(""python <(curl <remote python file>"");
ProcessBuilder builder = new ProcessBuilder(commands);
builder.redirectErrorStream(true);
and its giving
/bin/sh: python <(curl ): No such file or directory
Tried with command interpolation ($ in front of curl and python command is not wrapped around double quotes)
commands.add("/bin/sh");
commands.add("-c");
commands.add("python <$(curl <remote python file>)");
this is throwing
ambiguous redirect error
java processbuilder
asked Jan 19 at 6:46
Nuthan KumarNuthan Kumar
16212
add a comment |
2
I am trying to execute a python file (remote) using java Process builder with the following code.
List<String> commands = new ArrayList<String>();
commands.add("/bin/sh");
commands.add("-c");
commands.add(""python <(curl <remote python file>"");
ProcessBuilder builder = new ProcessBuilder(commands);
builder.redirectErrorStream(true);
and its giving
/bin/sh: python <(curl ): No such file or directory
Tried with command interpolation ($ in front of curl and python command is not wrapped around double quotes)
commands.add("/bin/sh");
commands.add("-c");
commands.add("python <$(curl <remote python file>)");
this is throwing
ambiguous redirect error
java processbuilder
asked Jan 19 at 6:46
Nuthan KumarNuthan Kumar
16212
The interpolated version is missing a closing paren
– Mad Physicist
Jan 19 at 6:55
I would surmise that it’s trying to execute “python <$(curl <remote python file>” as a single command (not a command as a command with parameters), I would seperate and use “<$(curl <remote python file>” as a seperate command
– MadProgrammer
Jan 19 at 6:55
my bad on closing parenthesis (its copy/paste issue)
– Nuthan Kumar
Jan 19 at 7:04
Separate command means download file to local and then running python? I am afraid this may not be possible in my case. This is a framework where users provide a string of command and Java code executes them (any shell command)
– Nuthan Kumar
Jan 19 at 7:06
add a comment |
2
2
2
I am trying to execute a python file (remote) using java Process builder with the following code.
List<String> commands = new ArrayList<String>();
commands.add("/bin/sh");
commands.add("-c");
commands.add(""python <(curl <remote python file>"");
ProcessBuilder builder = new ProcessBuilder(commands);
builder.redirectErrorStream(true);
and its giving
/bin/sh: python <(curl ): No such file or directory
Tried with command interpolation ($ in front of curl and python command is not wrapped around double quotes)
commands.add("/bin/sh");
commands.add("-c");
commands.add("python <$(curl <remote python file>)");
this is throwing
ambiguous redirect error
java processbuilder
asked Jan 19 at 6:46
Nuthan KumarNuthan Kumar
16212
I am trying to execute a python file (remote) using java Process builder with the following code.
List<String> commands = new ArrayList<String>();
commands.add("/bin/sh");
commands.add("-c");
commands.add(""python <(curl <remote python file>"");
ProcessBuilder builder = new ProcessBuilder(commands);
builder.redirectErrorStream(true);
and its giving
/bin/sh: python <(curl ): No such file or directory
Tried with command interpolation ($ in front of curl and python command is not wrapped around double quotes)
commands.add("/bin/sh");
commands.add("-c");
commands.add("python <$(curl <remote python file>)");
this is throwing
ambiguous redirect error
java processbuilder
java processbuilder
asked Jan 19 at 6:46
Nuthan KumarNuthan Kumar
16212
asked Jan 19 at 6:46
Nuthan KumarNuthan Kumar
16212
edited Jan 19 at 7:03
Nuthan Kumar
asked Jan 19 at 6:46
Nuthan KumarNuthan Kumar
16212
asked Jan 19 at 6:46
Nuthan KumarNuthan Kumar
16212
asked Jan 19 at 6:46
Nuthan KumarNuthan Kumar
16212
16212
The interpolated version is missing a closing paren
– Mad Physicist
Jan 19 at 6:55
I would surmise that it’s trying to execute “python <$(curl <remote python file>” as a single command (not a command as a command with parameters), I would seperate and use “<$(curl <remote python file>” as a seperate command
– MadProgrammer
Jan 19 at 6:55
my bad on closing parenthesis (its copy/paste issue)
– Nuthan Kumar
Jan 19 at 7:04
Separate command means download file to local and then running python? I am afraid this may not be possible in my case. This is a framework where users provide a string of command and Java code executes them (any shell command)
– Nuthan Kumar
Jan 19 at 7:06
add a comment |
The interpolated version is missing a closing paren
– Mad Physicist
Jan 19 at 6:55
I would surmise that it’s trying to execute “python <$(curl <remote python file>” as a single command (not a command as a command with parameters), I would seperate and use “<$(curl <remote python file>” as a seperate command
– MadProgrammer
Jan 19 at 6:55
my bad on closing parenthesis (its copy/paste issue)
– Nuthan Kumar
Jan 19 at 7:04
Separate command means download file to local and then running python? I am afraid this may not be possible in my case. This is a framework where users provide a string of command and Java code executes them (any shell command)
– Nuthan Kumar
Jan 19 at 7:06
The interpolated version is missing a closing paren
– Mad Physicist
Jan 19 at 6:55
The interpolated version is missing a closing paren
– Mad Physicist
Jan 19 at 6:55
I would surmise that it’s trying to execute “python <$(curl <remote python file>” as a single command (not a command as a command with parameters), I would seperate and use “<$(curl <remote python file>” as a seperate command
– MadProgrammer
Jan 19 at 6:55
I would surmise that it’s trying to execute “python <$(curl <remote python file>” as a single command (not a command as a command with parameters), I would seperate and use “<$(curl <remote python file>” as a seperate command
– MadProgrammer
Jan 19 at 6:55
my bad on closing parenthesis (its copy/paste issue)
– Nuthan Kumar
Jan 19 at 7:04
my bad on closing parenthesis (its copy/paste issue)
– Nuthan Kumar
Jan 19 at 7:04
Separate command means download file to local and then running python? I am afraid this may not be possible in my case. This is a framework where users provide a string of command and Java code executes them (any shell command)
– Nuthan Kumar
Jan 19 at 7:06
Separate command means download file to local and then running python? I am afraid this may not be possible in my case. This is a framework where users provide a string of command and Java code executes them (any shell command)
– Nuthan Kumar
Jan 19 at 7:06
add a comment |
1 Answer
1
active
oldest
votes
0
Java can do just about everything curl can do. Just download the file with code:
URL remotePythonFile = new URL("http://example.com/remotefile.py");
Path localPythonFile = Files.createTempfile(null, ".py");
try (InputStream remoteStream = remotePythonFile.openStream()) {
Files.copy(remoteStream, localPythonFile,
StandardCopyOption.REPLACE_EXISTING);
}
ProcessBuilder builder =
new ProcessBuilder("python", localPythonFile.toString());
answered Jan 19 at 7:12
VGRVGR
22.7k42840
unfortunately, this is not an option for us. The code snippet above is getting dynamic List (commands ) from an external source and this can have any valid shell command.
– Nuthan Kumar
Jan 19 at 7:16
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
Java can do just about everything curl can do. Just download the file with code:
URL remotePythonFile = new URL("http://example.com/remotefile.py");
Path localPythonFile = Files.createTempfile(null, ".py");
try (InputStream remoteStream = remotePythonFile.openStream()) {
Files.copy(remoteStream, localPythonFile,
StandardCopyOption.REPLACE_EXISTING);
}
ProcessBuilder builder =
new ProcessBuilder("python", localPythonFile.toString());
answered Jan 19 at 7:12
VGRVGR
22.7k42840
unfortunately, this is not an option for us. The code snippet above is getting dynamic List (commands ) from an external source and this can have any valid shell command.
– Nuthan Kumar
Jan 19 at 7:16
add a comment |
0
Java can do just about everything curl can do. Just download the file with code:
URL remotePythonFile = new URL("http://example.com/remotefile.py");
Path localPythonFile = Files.createTempfile(null, ".py");
try (InputStream remoteStream = remotePythonFile.openStream()) {
Files.copy(remoteStream, localPythonFile,
StandardCopyOption.REPLACE_EXISTING);
}
ProcessBuilder builder =
new ProcessBuilder("python", localPythonFile.toString());
answered Jan 19 at 7:12
VGRVGR
22.7k42840
unfortunately, this is not an option for us. The code snippet above is getting dynamic List (commands ) from an external source and this can have any valid shell command.
– Nuthan Kumar
Jan 19 at 7:16
add a comment |
0
0
0
Java can do just about everything curl can do. Just download the file with code:
URL remotePythonFile = new URL("http://example.com/remotefile.py");
Path localPythonFile = Files.createTempfile(null, ".py");
try (InputStream remoteStream = remotePythonFile.openStream()) {
Files.copy(remoteStream, localPythonFile,
StandardCopyOption.REPLACE_EXISTING);
}
ProcessBuilder builder =
new ProcessBuilder("python", localPythonFile.toString());
answered Jan 19 at 7:12
VGRVGR
22.7k42840
Java can do just about everything curl can do. Just download the file with code:
URL remotePythonFile = new URL("http://example.com/remotefile.py");
Path localPythonFile = Files.createTempfile(null, ".py");
try (InputStream remoteStream = remotePythonFile.openStream()) {
Files.copy(remoteStream, localPythonFile,
StandardCopyOption.REPLACE_EXISTING);
}
ProcessBuilder builder =
new ProcessBuilder("python", localPythonFile.toString());
answered Jan 19 at 7:12
VGRVGR
22.7k42840
answered Jan 19 at 7:12
VGRVGR
22.7k42840
answered Jan 19 at 7:12
VGRVGR
22.7k42840
answered Jan 19 at 7:12
VGRVGR
22.7k42840
22.7k42840
unfortunately, this is not an option for us. The code snippet above is getting dynamic List (commands ) from an external source and this can have any valid shell command.
– Nuthan Kumar
Jan 19 at 7:16
add a comment |
unfortunately, this is not an option for us. The code snippet above is getting dynamic List (commands ) from an external source and this can have any valid shell command.
– Nuthan Kumar
Jan 19 at 7:16
unfortunately, this is not an option for us. The code snippet above is getting dynamic List (commands ) from an external source and this can have any valid shell command.
– Nuthan Kumar
Jan 19 at 7:16
unfortunately, this is not an option for us. The code snippet above is getting dynamic List (commands ) from an external source and this can have any valid shell command.
– Nuthan Kumar
Jan 19 at 7:16
add a comment |
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The interpolated version is missing a closing paren
– Mad Physicist
Jan 19 at 6:55
I would surmise that it’s trying to execute “python <$(curl <remote python file>” as a single command (not a command as a command with parameters), I would seperate and use “<$(curl <remote python file>” as a seperate command
– MadProgrammer
Jan 19 at 6:55
my bad on closing parenthesis (its copy/paste issue)
– Nuthan Kumar
Jan 19 at 7:04
Separate command means download file to local and then running python? I am afraid this may not be possible in my case. This is a framework where users provide a string of command and Java code executes them (any shell command)
– Nuthan Kumar
Jan 19 at 7:06