luajit:tldr:5901d
The command "luajit -e '${print("Hello World")}'" is used to execute a Lua code snippet using the command-line LuaJIT interpreter.
Here's a breakdown of the command:
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"luajit": This is the command to run the LuaJIT interpreter. LuaJIT is a Just-In-Time compiler for the Lua programming language.
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"-e": This option is used to pass a Lua code snippet directly to the interpreter without requiring a separate Lua script file. The following argument is expected to be the code snippet.
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'${print("Hello World")}' is the Lua code snippet enclosed in single quotes. The dollar sign ($) is not directly related to Lua syntax but might be used as a variable substitution symbol in some cases. In this command, it does not have any special meaning in Lua.
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"print("Hello World")": This Lua code snippet calls the "print" function to display the string "Hello World" on the console. The "print" function in Lua outputs the specified text or values to the standard output.
When you run this command, LuaJIT interprets the given code snippet and executes it, resulting in "Hello World" being printed on the console.