In a Unix shell script, what command is used to accept user's input?

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BlackTom AI · Accepted Answer

In this Unix shell scripting question, we evaluate which command is used to capture input from the user.
Option 1: 'read' — This is the standard built-in command in POSIX shells (like sh, bash, dash) used to read a line from standard input and assign it to a variable. It directly matches the typical pattern of prompting and receiving user input in scripts.
Option 2: 'input' — There is no default shell command named 'input' for reading user input. While some languages use an 'input' function (e.g., Python), in a Unix shell script this would be invalid or would require a custom function, not a built-in.
Option 3: 'echo' — The 'echo' command outputs text to the terminal. It does not capture or read input from the user; it only displays messages, which is the opposite of collecting user input.
Option 4: 'get' — There is no standard shell command named 'get' for input. It may be mistaken from other contexts or languages, but in a Unix shell script, this would not read user input unless defined by the user as a function or alias, which is not the default behavior.
Overall, the question targets the canonical method for obtaining user input in a shell script, and only 'read' provides the built-in, straightforward mechanism to read a line from stdin into a variable.

IWBS001 Quiz Seven | LA010- Requires Respondus LockDown Browser

In a Unix shell script, what command is used to accept user's input?

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