Question

我无法弄清楚我在哪里搞砸了它但它杀了我，而且我越乱越糟糕。我正在尝试从用户获取目录并在要求目录中的搜索词之前显示它。我希望用户必须专门输入“q！”退出，否则它只是从头开始。我究竟做错了什么？提前谢谢！

#!/bin/bash
echo 'Enter directory name, pwd for present working directory, or q! for quit.'
read $dirName
echo $dirName
read -p "Press [Enter] key to continue..."
echo 'Enter part, or all of the filename'
read $fileName
echo $fileName
read -p "Press [Enter] key to continue..."
if [ "$dirName" = "q!"]; then
  exit 0
else
  ls -l $dirName
  ls -a *$fileName*
fi

Answer 1

我希望用户必须专门输入“q！”退出，否则它刚刚从头开始

你需要使用循环，并检查用户输入，只在用户输入"q!"时中断循环。 $（以及其他read $dirName）也不需要read。

#!/bin/bash
while true
do
        echo 'Enter directory name, pwd for present working directory, or q! for quit.'
        read dirName
        [ "x$dirName" == "xq!" ] && break
        #do other stuff
done

Answer 2

#!/bin/bash
echo 'Enter directory name, pwd for present working directory, or q! for quit.'
read dirName                      #<--- remove $
echo $dirName
read -p "Press [Enter] key to continue..."
echo 'Enter part, or all of the filename'
read fileName                     #<--- remove $
echo $fileName
read -p "Press [Enter] key to continue..."
if [ "$dirName" = "q!" ]; then    #<--- add space after "q!"
  exit 0
else
  ls -l $dirName
  ls -a *$fileName*
fi

这适用于我的电脑。

如果和其他在bash不工作

2 个答案: