如何显示或捕获SSHLibrary中"Execute command"的完整输出及SSH命令执行问题

Got it, let's break down how to solve your SSH tasks and capture the full output from Execute Command in Robot Framework's SSHLibrary.

1. Complete SSH Connection & Command Execution Script #

First, here's a clean, working script that follows your requirements—we'll handle connecting to your target IP, logging in, and running the ./send command in the specified directory.

Option 1: Switch to Target Directory First (Explicit Path Handling) #

This approach makes it clear you're working in the /export/home/IKBAL/Simulator directory:

*** Settings ***
Library    SSHLibrary

*** Variables ***
${SSH_IP}    125.230.200.80
${USERNAME}    your_username_here
${PASSWORD}    your_password_here

*** Test Cases ***
Run Send Command on Remote Server
    Close All Connections
    Open Connection    ${SSH_IP}    port=22    timeout=10
    Login    ${USERNAME}    ${PASSWORD}    delay=10 seconds
    # Execute command in the target directory using && to chain commands
    ${command_output}=    Execute Command    cd /export/home/IKBAL/Simulator && ./send 1 1 hostsocket S
    # Log the output (we'll cover this more in section 2)
    Log    Command Output: ${command_output}    INFO
    Close All Connections

Option 2: Use Absolute Path for the Command #

If you prefer to skip switching directories, you can run the command directly with its full path:

# Replace the Execute Command line above with this:
${command_output}=    Execute Command    /export/home/IKBAL/Simulator/send 1 1 hostsocket S

2. Capturing & Displaying Full Execute Command Output #

SSHLibrary's Execute Command returns the standard output (stdout) of the command by default. To capture and view the full output (including stderr if needed), follow these tips:

Capture Stdout Only (Default Behavior) #

Assign the keyword's return value to a variable, then log it to the Robot Framework report or console:

# Capture output to a variable
${stdout}=    Execute Command    cd /export/home/IKBAL/Simulator && ./send 1 1 hostsocket S
# Log to the test report (INFO level ensures it's visible)
Log    Full Stdout Output: ${stdout}    INFO
# Print directly to the console (useful for real-time debugging)
Log To Console    ${stdout}

Capture Both Stdout & Stderr #

If your command might produce error output (stderr), use the return_stderr=True parameter to capture both streams:

${stdout}=    ${stderr}=    Execute Command    cd /export/home/IKBAL/Simulator && ./send 1 1 hostsocket S    return_stderr=True
Log    Stdout: ${stdout}    INFO
Log    Stderr: ${stderr}    INFO
# If you want to combine both streams into one variable
${full_output}=    Catenate    SEPARATOR=\n    ${stdout}    ${stderr}
Log    Full Output (Stdout + Stderr): ${full_output}    INFO

Ensure Long Output Isn't Truncated #

By default, Robot Framework might truncate long logs. To see the full output, set the log level to DEBUG at the start of your test case:

Set Log Level    DEBUG

This ensures even lengthy output is fully recorded in the test report.

内容的提问来源于stack exchange，提问作者Ikbal Hossain