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Illegal Filename Samples
Sample filenames with illegal characters, reserved names, and cross-platform issues for testing filename sanitization
Samples
Entries inside this sample collection
Windows Illegal Characters
Filenames containing characters illegal on Windows: < > : " / \ | ? * and reserved device names
Difficulty
4/10
Estimated time
3 min
Tags
windows, illegal-characters, reserved-names, device-names
windows-illegal.txt
TXT · 1.1 KB
- fileSize
- 1.1 KB
- encoding
- UTF-8
- lineCount
- 48
- characterCount
- 1100
- illegalCharacters
- ["<",">",":","\"","/","\\","|","?","*"]
- hasReservedNames
- true
- hasDeviceNames
- true
- platform
- Windows
Linux Illegal Characters
Filenames with issues on Linux systems: forward slashes, null characters, and command-line argument problems
Difficulty
4/10
Estimated time
3 min
Tags
linux, illegal-characters, null-characters, path-separators
linux-illegal.txt
TXT · 950 B
- fileSize
- 950 B
- encoding
- UTF-8
- lineCount
- 30
- characterCount
- 950
- illegalCharacters
- ["/","\u0000","\n","\t"]
- hasNullCharacters
- true
- hasLeadingDashes
- true
- platform
- Linux
Cross-Platform Tricky Names
Filenames with tricky cross-platform issues: reserved names, trailing dots, leading/trailing spaces, and long filenames
Difficulty
5/10
Estimated time
3 min
Tags
cross-platform, reserved-names, edge-cases, long-filenames
cross-platform-tricky.txt
TXT · 1.3 KB
- fileSize
- 1.3 KB
- encoding
- UTF-8
- lineCount
- 38
- characterCount
- 1300
- hasReservedNames
- true
- hasTrailingDots
- true
- hasLeadingTrailingSpaces
- true
- hasLongFilenames
- true
Unicode Filenames
Filenames in various languages and scripts including right-to-left text, special characters, and emoji
Difficulty
3/10
Estimated time
2 min
Tags
unicode, multilingual, emoji, special-characters, right-to-left
unicode-filenames.txt
TXT · 1.6 KB
- fileSize
- 1.6 KB
- encoding
- UTF-8
- lineCount
- 57
- characterCount
- 1600
- scripts
- ["Chinese","Japanese","Korean","Cyrillic","Arabic","Hebrew","Latin"]
- hasEmoji
- true
- hasRightToLeft
- true
- hasSpecialCharacters
- true
Real World Messy Filenames
Examples of messy filenames from real-world scenarios: downloads, screenshots, backups, and temporary files
Difficulty
2/10
Estimated time
2 min
Tags
real-world, downloads, screenshots, backups, temporary-files
real-world-messy.txt
TXT · 1.8 KB
- fileSize
- 1.8 KB
- encoding
- UTF-8
- lineCount
- 52
- characterCount
- 1800
- sources
- ["Downloads","Screenshots","Backups","Mobile apps","Email attachments"]
- hasDuplicates
- true
- hasVersionNumbers
- true
- hasTimestamps
- true
Tools
Tools frequently paired with this sample
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