技术问询：如何移除文件名及文件夹名的空格？含批量及仅首尾需求

Hey there! Let's tackle your two file/folder renaming needs step by step. I'll cover solutions for both Windows (using PowerShell) and Linux/macOS (using bash) since those are the most common environments.

Windows (PowerShell) #

This command will recursively process all files and folders in your current directory, stripping every single space from their names:

Get-ChildItem -Recurse | Rename-Item -NewName { $_.Name -replace '\s', '' }

• -Recurse: Ensures we process files and folders inside subdirectories too.
• -replace '\s', '': Uses regex to replace any whitespace character (spaces, tabs, etc.) with an empty string. If you only want to target regular spaces, use ' ' instead of '\s'.

Pro tip: Add -WhatIf at the end first to preview changes without actually renaming anything:

Get-ChildItem -Recurse | Rename-Item -NewName { $_.Name -replace '\s', '' } -WhatIf

If you don't want to process subdirectories, simply omit the -Recurse flag.

Linux/macOS (Bash) #

Use this find command with Perl-style rename (standard on most modern systems) to remove all spaces recursively:

find . -depth -name "* *" -execdir rename 's/\s+//g' {} +

• -depth: Renames files inside folders before renaming the folders themselves, avoiding broken file paths.
• 's/\s+//g': Regex pattern that globally replaces one or more whitespace characters with nothing. Use 's/ //g' if you only want to target regular spaces.

If your system uses the util-linux version of rename, use this alternative with mv and sed:

find . -depth -name "* *" -execdir bash -c 'mv "$0" "$(echo "$0" | sed "s/ //g")"' {} \;

To limit to the current directory only, add -maxdepth 1 to the find command.

Windows (PowerShell) #

This command trims spaces only from the start and end of file/folder names, leaving any internal spaces intact:

Get-ChildItem -Recurse | Rename-Item -NewName { $_.Name -replace '^\s+|\s+$', '' }

• ^\s+: Matches one or more spaces at the start of the name.
• \s+$: Matches one or more spaces at the end of the name.
• |: Acts as an "or" operator, targeting both patterns simultaneously.

Preview changes first with -WhatIf:

Get-ChildItem -Recurse | Rename-Item -NewName { $_.Name -replace '^\s+|\s+$', '' } -WhatIf

Omit -Recurse if you don't need to process subdirectories.

Linux/macOS (Bash) #

Use this find command with Perl-style rename to trim leading/trailing spaces:

find . -depth -name "* *" -execdir rename 's/^\s+|\s+$//g' {} +

The regex works exactly like the PowerShell version—only spaces at the very start or end of each name are removed.

For util-linux rename, use this alternative:

find . -depth -name "* *" -execdir bash -c 'mv "$0" "$(echo "$0" | sed "s/^[[:space:]]*//; s/[[:space:]]*$//")"' {} \;

Add -maxdepth 1 to restrict to the current directory.

Quick Safety Note #

Always back up your files before running bulk rename commands, just in case something unexpected happens—it's a small step that saves a lot of hassle!

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