32位环境下如何从命令行获取应用启动进程的PID？

Hey there! Since you've already got the 64-bit command line sorted for fetching a process ID by its command line, let's tackle the 32-bit scenario. The core idea stays similar, but there are a few tweaks to make it work reliably in 32-bit systems or 32-bit PowerShell sessions.

Recommended PowerShell Command #

Instead of relying on findstr and TrimStart to clean up output, we can simplify the command to directly get the pure PID value—this works great in 32-bit environments too:

# Exact command line match (use your app's full quoted command line)
Get-CimInstance Win32_Process -Filter "commandLine = 'full_command_line_of_your_process'" | Select-Object -ExpandProperty ProcessId

# Fuzzy match (use a unique string from your app's command line if exact matching is tricky)
Get-CimInstance Win32_Process | Where-Object { $_.CommandLine -like "*unique_identifier_for_your_process*" } | Select-Object -ExpandProperty ProcessId

Key Notes to Keep in Mind #

• Exact matching precision: If your app launches with a full path (like "C:\Program Files (x86)\YourApp\app.exe"), make sure to include the full quoted string in the filter. 32-bit processes don't have the SysWOW64 path redirection quirk that sometimes complicates 64-bit queries of 32-bit apps.
• 32-bit sessions on 64-bit systems: If you're running this from a 32-bit PowerShell session on a 64-bit Windows install, the command will still correctly target 32-bit processes without extra configuration.
• Cleaner output: Using Select-Object -ExpandProperty ProcessId eliminates the need for post-processing with findstr or TrimStart—it just outputs the raw numeric PID directly.

Alternative: Using tasklist (If WMI is Restricted) #

If your environment blocks WMI access, you can use the built-in tasklist command instead. Here's how to extract the PID:

# Get PID with basic context
tasklist /v /fi "IMAGENAME eq your_app.exe" /fo list | findstr /i "PID:"

# Extract just the numeric PID value
for /f "tokens=2 delims=:" %a in ('tasklist /v /fi "IMAGENAME eq your_app.exe" /fo list ^| findstr /i "PID:"') do @echo %a

内容的提问来源于stack exchange，提问作者Grégory L