read-novar.sh

BASH Shell 编程 经典教程 《高级SHELL脚本编程》中文版

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

echo

# -------------------------- #
echo -n "Enter a value: "
read var
echo "\"var\" = "$var""
# 到这里为止, 都与期望的一样.
# -------------------------- #

echo

# ------------------------------------------------------------------- #
echo -n "Enter another value: "
read           #  没有变量分配给'read'命令, 所以...
               #+ 输入将分配给默认变量, $REPLY.
var="$REPLY"
echo "\"var\" = "$var""
# 这部分代码和上边的代码等价.
# ------------------------------------------------------------------- #

echo

exit 0