eolas/Programming_Languages/Shell/Control_flow.md
2022-10-04 10:30:05 +01:00

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---
categories:
- Programming Languages
tags:
- shell
---
## If statements
- Conditional blocks start with `if` and end with the inversion `fi` (this is a common syntactic pattern in bash)
- The conditional expression must be placed in square brackets with spaces either side. The spaces matter: if you omit them, the code will not run
- We designate the code to run when the conditional is met with `then`
- We can incorporate else if logic with `elif`