Multiple choice technology programming languages

What the below command does? echo var=$<

  1. Assigns value of < to var variable
  2. Assigns value of $< to var variable

  3. Gets input from stdin and assigns that to var variable

  4. Assigns previously returned value to var variable
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C Correct answer
Explanation

In traditional Bourne-like shells or specific shell scripts, &lt; is not a standard variable. However, in the context of some older shells or specific scripting languages (like Perl or C shell variants), $&lt; is used to read a line from standard input.

AI explanation

To explain the given command, let's break it down:

echo var=$&lt;

This command is using the echo command to print a string. The string being printed is var= followed by $&lt;.

In shell scripting, the $&lt; represents the input from standard input (stdin). It is used to read input from the user or from a file.

So, the correct answer is:

C. Gets input from stdin and assigns that to the var variable

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