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How Do You Write an If Else Statement in Linux?

James H. Sterling • • 3 min read
How Do You Write an If Else Statement in Linux?
Contents

The if statement starts with the if keyword followed by the conditional expression and the then keyword. The statement ends with the fi keyword. If the TEST-COMMAND evaluates to True , the STATEMENTS gets executed. If TEST-COMMAND returns False , nothing happens; the STATEMENTS get ignored.

How do you write else if in Linux?

The “if’ keyword is followed by the condition you want to check. In this if-else-if conditional statement, the expressions are evaluated from top to bottom. This is followed by “then” keyword. After that, if an expression is evaluated to true, corresponding statements are executed.

How do you write if-else in shell script?

Their description with syntax is as follows:

  1. if statement. This block will process if specified condition is true. …
  2. if-else statement. …
  3. if..elif..else..fi statement (Else If ladder) …
  4. if..then..else..if..then..fi..fi..(Nested if) …
  5. Syntax: case in Pattern 1) Statement 1;; Pattern n) Statement n;; esac. …
  6. Example 2:
James H. Sterling
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James H. Sterling

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.