Скачать или смотреть Fixing Hidden Spaces in Batch File Printer Permission Script with WMIC and Subinacl

Learn how to resolve hidden spaces in your batch file scripts for printer permissions using WMIC and Subinacl to ensure seamless functionality.
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Troubleshooting Hidden Spaces in Batch File Scripts for Printer Permissions

If you're trying to streamline permissions for print queues on your computer using a batch file but are encountering issues with hidden spaces in the printer names, rest assured you're not alone. The issue often stems from the way the output from WMIC (Windows Management Instrumentation Command-line) formats the printer names for display, leading to unexpected spaces and quotation errors in your Subinacl command. Let's delve into how to resolve this and ensure your script runs smoothly.

Understanding the Problem

When you run a command like:

[[See Video to Reveal this Text or Code Snippet]]

The output is neatly arranged into a table, but this formatting can introduce extra spaces within the printer names. As a result, when you pass these names to Subinacl, the additional spaces can cause the command to fail, resulting in errors related to printer name recognition.

Example of the Problematic Output

Here is a snippet of the output you might encounter:

[[See Video to Reveal this Text or Code Snippet]]

As you can see, these extra spaces prevent Subinacl from identifying the printer names correctly.

The Optimal Solution

To eliminate these extra spaces, you can modify your original batch script by changing the command that retrieves printer names. Instead of using the standard output, utilize the following command:

[[See Video to Reveal this Text or Code Snippet]]

This modification will provide a cleaner output that can be easily processed without unwanted spaces.

Updated Script Breakdown

Here's how the revised batch script will look along with an explanation for each part:

[[See Video to Reveal this Text or Code Snippet]]

Key Changes Explained:

Push Directory: pushd %~dp0 saves the current directory context for later use.

Setting Local Environment: setlocal begins a local environment to prevent variables from affecting the global environment.

Using WMIC with Format List: The updated command pulls printer names in a list format and uses find "=" to filter the relevant information.

Inner Loop for Correction: The inner for loop processes each printer name without hidden spaces by using delims= to capture the entire line as is, ensuring no unwanted spaces impact the Subinacl command.

Final Output

With the adjustments made, the output now appears as follows, ready for Subinacl to process correctly:

[[See Video to Reveal this Text or Code Snippet]]

This format signifies neat and clear printer names without the hidden dangers of extra spaces, allowing permissions to be set well.

Conclusion

Your journey toward correcting printer permission errors using batch files can be simplified with just a slight tweak to the WMIC command. By following the outlined steps and adjusting your script accordingly, your commands can execute effectively without falling prey to formatting issues. So, take a breath, implement these changes, and you will have your permissions correctly applied in no time!