Brace Expansion

Advanced~15 min read

Brace expansion builds lists before command execution, useful for ranges, permutations, and templated names.

Examples

Output

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Note: Expansion happens in the shell, not by external commands.

Pro Tip: Use zero-padded ranges like {01..12} to align filenames.

Caution: Globbing may expand further; quote paths to avoid unintended matches.

Brace expansion is purely syntactic; it does not evaluate variables inside braces.

Use braces, not parentheses, and separate list items with commas.

Task: Echo the sequence report_01.txt to report_12.txt using brace expansion.

Output

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Show Solution

echo report_{01..12}.txt

Unlock powerful string operations via Advanced Parameter Expansion.