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Flux
Asked: 2021-12-19 22:15:26 +0800 CST

SSH 详细模式：如何在没有所有“debug1”行的情况下查看传输的数据量？

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在 OpenSSH 中，详细模式 ( ssh -v ...) 会在退出时显示一些有用的统计信息（例如Transferred: sent 3532, received 3076 bytes, in 5.5 seconds）。但是，详细模式也会打印很多debug1: ...我不关心的行。例如：

$ ssh -v -N -D localhost:12345 [email protected]
OpenSSH_8.2p1 Ubuntu-4ubuntu0.2, OpenSSL 1.1.1f  31 Mar 2020
debug1: Reading configuration data /home/user/.ssh/config
debug1: /home/user/.ssh/config line 5: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
--- snip ---
debug1: channel 0: free: port listener, nchannels 4
debug1: channel 1: free: port listener, nchannels 3
debug1: channel 2: free: port listener, nchannels 2
debug1: channel 3: free: port listener, nchannels 1
Transferred: sent 3532, received 3076 bytes, in 5.5 seconds
Bytes per second: sent 638.4, received 556.0
debug1: Exit status 0

如何删除所有debug1: ...行以仅显示数据使用统计信息？我只想看到Transferred: ...和Bytes per second: ...线。我试过ssh -v ... 2>&1 | sed '/debug1/d'了，但这不起作用，因为Ctrlc会产生一个 SIGINT 发送到前台进程组中的所有进程。sed在使用统计信息发送到其标准输入之前终止，因此从不打印使用统计信息。

我使用/bin/sh（不是 bash）作为我的外壳。

ssh openssh

1 个回答

  1. Best Answer

    “已传输...”消息以“详细”日志级别打印。您可以使用“-o LogLevel”选项将 ssh 设置为“详细”级别：

    % ssh -o LogLevel=verbose localhost echo hello
Authenticated to localhost ([::1]:22).
hello
Transferred: sent 2768, received 2880 bytes, in 0.0 seconds
Bytes per second: sent 117942.8, received 122715.1
%

    .ssh/config如果您希望它自动发生，您可以在文件中设置它：

    Host example.com
    LogLevel verbose
    • 0

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