culture shock

Preposition: for

• people: Linux is the most sensitive One of first culture shocks for people moving from Windows to Linux is the case sensitivity of file names.

Adjective modifier

• complete: It wasn't a complete culture shock moving from journalism to marketing either.
• major: The first few days were a major culture shock.
• first: Linux is the most sensitive One of first culture shocks for people moving from Windows to Linux is the case sensitivity of file names.