read-novar.sh

一本完整的描述Unix Shell 编程的工具书的所有范例

#!/bin/bash
# read-novar.sh

echo

# -------------------------- #
echo -n "Enter a value: "
read var
echo "\"var\" = "$var""
# Everything as expected here.
# -------------------------- #

echo

# ------------------------------------------------------------------- #
echo -n "Enter another value: "
read           #  No variable supplied for 'read', therefore...
               #+ Input to 'read' assigned to default variable, $REPLY.
var="$REPLY"
echo "\"var\" = "$var""
# This is equivalent to the first code block.
# ------------------------------------------------------------------- #

echo

exit 0