I am executing a cmd from jsch , once command is completed I need to show the command output. while reading the command output its taking long time and its ns not coming from the while loop even after execution of command. The following is my code: Answer I have added the exit command at the end of the comman…
Tag: jsch
How to execute shell command using SFTP channel in JSch?
I am trying to list all *.xml files in the directory. I do a cd first and then was trying to execute: But not sure how exactly to do it. There were some example around the Exec channel but is there a way to do the find with SFTP itself? Answer Your requirements are conflicting. You cannot execute shell comman…
JSch: Is there a way to expose user environment variables to “exec” channel?
I am trying to run commands which uses local Linux logical paths like cat $test_dir/test.dat, but the logical path $test_dir (which is a user environment variable) is not available via ChannelExec. But when I use interactive ChannelShell, I am able to see the user variables and the commands run fine on the in…
Providing input/subcommands to command executed over SSH with JSch
I’m trying to manage router via Java application using Jcraft Jsch library. I’m trying to send Router Config via TFTP server. The problem is in my Java code because this works with PuTTY. This my Java code: I get Line has an invalid autocommand ‘192.168.50.1’ The problem is how can I r…
Running command using “exec” channel with JSch does not return any output
I am trying to execute a command on a Linux server using SSH from Android with JSch. As far as I know I am connecting to the server, but when I attempt to retrieve the results of the command I am getting nothing. Connect to server: Retrieve data: What am I missing here? Answer You disconnect immediately after…
Using SFTP in Java, How do I transfer a file from one folder to another? [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 7 years ago. The community reviewed whether to reopen this question 5 months ago and left it closed: Not suit…
My JSch session doesn’t execute command
I’m trying to write a Java code that can ssh into a Unix server and reset a user’s password. So I tried to implement some of the code found in SO. Eg. Sending commands to remote server through ssh by Java with JSch Take commands(password) from string and set as InputStream to Unix servers in Java …
Kill process before disconnecting
I am using Jsch to tail a server-log. When I close my exec-channel and session, the “tail -f …” process still stays alive at server side. I tried to do channel.sendSignal(“KILL”) but it throws an exception: com.jcraft.jsch.JSchException: failed to send channel request how can I d…
Using JSch, is there a way to tell if a remote file exists without doing an ls?
Using JSch, is there a way to tell if a remote file exists without doing an ls and looping through the files to find a name match? Thanks Answer (This is if you’re using the SFTP part of the library, an assumption I made without thinking about it.) I thought its ls(String path) would accept filenames; I…
JSchException: Algorithm negotiation fail
I am trying to connect to remote sftp server over ssh with JSch (0.1.44-1) but during session.connect(); I am getting this exception: Logs from JSch: I am able to log in to remote server with linux sftp command. I was trying to find any kind of clue in the internet but I failed. Debug output from linux sftp c…