Linux CLI - Navigating the File System
Why does the shell expand
~ before running a command, but not inside single quotes like '~'?Why does the shell expand ~ before running a command, but not inside single quotes like '~'?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand shell expansions and quoting
The shell expands~to home directory only when unquoted. Single quotes prevent all expansions.Step 2: Analyze each option
Because tilde expansion happens only outside quotes is true because tilde expansion is disabled inside quotes. Because single quotes escape all expansions is true because single quotes escape expansions. Because ~ inside quotes is treated as a normal character is true because inside quotes, ~ is literal.Final Answer:
All of the above -> Option DQuick Check:
Quotes prevent tilde expansion; ~ inside quotes is literal [OK]
Quick Trick: Quotes stop ~ from expanding; use unquoted for shortcuts [OK]
Common Mistakes:
- Expecting ~ to expand inside quotes
- Confusing single and double quotes
- Ignoring shell expansion rules
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