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A metacharacter is a character that has special meaning (bv: separates words,…)

Each of the metacharacters has special meaning to the shell and must be quoted if it is to represent itself.

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Characters

One of the following:

• Pipe (|)
• Ampersand (&)
• SemiColon (;)
• (
• )
• <
• >
• space tab
• !: History expansion character
• {} Bash - Brace {}