Name
if
Synopsis
if (condition
)statement1
[elsestatement2
]
If condition is true, do statement1; otherwise do statement2 in optional else clause. The condition can be an expression using any of the relational operators <, <=, = =, !=, >=, or >, as well as the array membership operator in, and the pattern-matching operators ~ and !~ (e.g., if ($1 ~ /[Aa].*/)). A series of statements must be put within braces. Another if can directly follow an else in order to produce a chain of tests or decisions.
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