ls：未找到命令BASH

Question

此脚本尝试将文本文件复制到另一个目录中。 我不明白为什么我有这个问题： ./move_in.sh：第36行：ls：命令未找到 它工作正常，直到我添加了if语句。

update_file=pwd 
echo "" 
echo "You can move a text file from your PC into the repository" 
echo "" 
echo "You need to know where is your text file" 
cd/
ls 
times=1 
echo "" 
echo "Where is your text file?" 
read directory 

while [ -d $directory ] 
do 
echo $times 
if [ $times == 1 ] 
then 
LAST=$directory 
fi 

if [ $times != 1 ] 
then 
LAST=$PATH/$directory 
fi 

cd $directory 
ls 
echo "" 
echo "Where is your text file?" 
read directory 
PATH=$LAST 
echo $PATH 
times=$((times + 1)) 
done 

PATH=$PATH/$directory 
echo $PATH 
open $PATH 
cp $PATH /\$update_file 
echo "You found the text file!" 
exit 0 

我想要的文件的完整路径，当过程完成后，这就是为什么我用LAST和路径，我平衡它们。

Answer 1

您要删除$ PATH用PATH = $ PATH： LS是不是内置命令，所以它必须在PATH环境