read Command

The read command in Linux is used to read input from the user and assign it to a variable. Here are a few examples of how to use the command:

read var – This command reads input from the user and assigns it to the variable var. For example, if the user enters “hello”, the variable var would be set to “hello”.
read -p "Enter your name: " name – This command prompts the user to enter their name, and the input is assigned to the variable name. The -p option is used to display a prompt.
read -a arr – This command reads input and assigns it to an array arr.
read -t 10 -p "Enter input within 10 sec:" var – This command prompts the user to enter input within 10 sec and assigns it to the variable var. The -t option is used to set a timeout.
read -s -p "Enter password: " pass – This command prompts the user to enter their password and assigns it to the variable pass. The -s option is used to make the input silent, so that the password is not displayed on the screen as it is typed.

Note that read command is often used in shell script, where it can be used to read input from a file or from command line arguments.

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