Adding today's date to multiple file names involves programmatically modifying file names to include the current calendar date (e.g., YYYY-MM-DD or MM-DD-YYYY). This process differs from manual renaming by efficiently applying the date stamp uniformly to many files at once, using scripting languages like Bash, PowerShell, Python, or dedicated renaming tools. It's essential for chronological sorting and avoiding file name conflicts.

Common uses include IT departments automatically dating log files for troubleshooting (e.g., app_log_2023-10-27.txt generated nightly). Office administrators often append dates to batches of daily reports (e.g., SalesReport_2023-10-27.xlsx) using PowerShell scripts (Get-ChildItem *.xlsx | Rename-Item -NewName {$_.BaseName + (Get-Date -Format "_yyyy-MM-dd") + $_.Extension}) or macOS/Linux terminal commands with date.

This technique significantly improves file organization and auditability. However, limitations include script dependency, potential issues with time zones in automation, and the need for standardized date formats across teams. Learning basic scripting is key for widespread adoption, while renaming software offers accessible alternatives for non-programmers, driving efficient file management innovation.