New Features In Bash Version 4.x - Part 3
In this installment, we are going to look at a couple of commands that have been updated in bash 4.x
read Enhancements
The read command has gotten several small improvements. There is one however that I thought was a real standout. You can now provide a default value that will be accepted if the user presses the Enter key. The new -i option is followed by a string containing the default text. Note that for this option to work, the -e option (which enables the readline library) must also be specified. Here is an example script:
#!/bin/bash
# read4: demo new read command feature
read -e -p "What is your user name? " -i $USER
echo "You answered: '$REPLY'"
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