Uniqlo T-Shirt Hides Secret Message Inside Real Obfuscated Bash Script

A Uniqlo UT graphic T-shirt featuring a dense block of text has intrigued developers who recognised it as a genuine obfuscated Bash script rather than decorative art. The design uses layered encoding techniques, beginning with a Base64-encoded string passed through an eval command — a combination commonly flagged as a security concern. A second layer applies ROT13, a simple letter-substitution cipher that shifts each letter by 13 positions and is often used for trivial text concealment. Further obfuscation is added using the rev command, which reverses the string character by character. Together, these stacked techniques disguise what ultimately decodes into a simple, readable hidden message embedded within the garment's design.