You can just read from channel.getInputStream(). That's my code for
running remote shell commands:
try {
channel = createChannel();
InputStream is = channel.getInputStream();
in = new BufferedReader(new InputStreamReader(is));
out = new StringWriter();
String line;
while ((line = in.readLine()) != null ||
!channel.isClosed()) {
if (line != null) {
out.write(line + '\n');
out.flush();
}
}
in.close();
is.close();
setExitStatus(channel.getExitStatus());
} catch (JSchException jse) {
log.warning("Jsch failure during running " + cmd);
} catch (IOException ex) {
log.warning("IO failure during running " + cmd);
} finally {
disconnect();
}
Mike V wrote:
How do you capture output of a command executed on Shell, and how do
you know if it is done executing?
I need this because some programs look for variables set by the
.profile (ksh).
This is how I'm doing it now:
-open Shell channel and send a ByteArrayInputStream that contains my
command, while outputing to a tmpfile.txt
-sleep for a bit and then (this is because i dont know when my command
is done running.. this is a retarded way of doing it since some
commands take a lot longer than others)
-open another channel(Exec) and send "cat tmpfile.txt" then read the
input stream
-remove the temp file
********************start of sample code**********
commandToRun=commandToRun + " > "+tempFile+"\n";
byte[] bytes = commandToRun.getBytes();
ByteArrayInputStream bais=new ByteArrayInputStream(bytes);
try { ..... //session connection stuff
.....
Channel channel=session.openChannel("shell");
((ChannelShell)channel).setInputStream(bais);
channel.connect();
try{Thread.sleep(1500);}catch(Exception ee){}
Channel channel2=session.openChannel("exec");
((ChannelExec)channel2).setCommand("cat "+tempFile+"\n");
InputStream in1=channel2.getInputStream();
channel2.connect();
//channel 3 deletes the temp file
**********************end of sample code **************************
There must be a better way of doing this...
What about a way to know when the command is done? Since the first
channel is a shell, i dont think you can wait for is to be .isClosed()
since it never is.
Thank you very much for your help.
Mike
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