If

wikipedia:Conditional (computer programming)

• Bash: https://stackoverflow.com/questions/18668556/comparing-numbers-in-bash

if (( a > b )); then
    ...
fi

if (( a > b )); then
    ...
else
    ...
fi

Bash:

if..elif..else

Activities

• Read http://www.rosettacode.org/wiki/Conditional_structures#UNIX_Shell

Related terms

• man test
• when: (ansible)
• if __name__ == "__main__":
• -z
• ==

See also

• Flow control, if, for, while, defer
• if, man test, -z, elif
• Programming: C, Python, go, loop, while, for, if, variable, Error handling, Regex, Function, IDE, await, R (programming language), XACML, Type, Class inheritance, Methods, Scheme, Array, Deserialization
• Programming languages: C, C++, Java, Kotlin, IaC, Bash, zsh, Rust, Lua, php, Clojure, Haskell, Go, Erlang, Scala, Python, Ruby, gcc, glibc, swift, Zig