Question

所以我试图编写一个脚本，搜索用户给出的目录，查找用户也提供的特定扩展名的所有文件。到目前为止，我的脚本只搜索我的主文件夹的mybooks目录，无论给出什么目录。到目前为止，该脚本如下所示：

# Prompts the user to input a directory
# Saves input in variable dir
echo -n "Please enter a directory to search in: "
read dir
if [ ! -d /$dir ]; then
   echo "You didn't enter a valid directory path. Please try again."
fi

# Prompts the user to input a file extension to search for
# Saves input in variable ext
echo -n "Please enter a file extension to search for: "
read ext
echo "I will now search for files ending in "$ext

# Searches for files that match the given conditions and prints them
find $dir -type f -name $ext
for file in *$ext
do
echo $file
done

#TODO: put code here that prints the names of the largest and smallest files
# that were found in the search

echo "The largest file was: "
echo "The smallest file was: "

因此，您可以看到永远不会提供mybooks目录。以下是示例输出：

Please enter a directory to search in: /var/books
Please enter a file extension to search for: .txt
I will now search for files ending in .txt
hound.txt
list-lines.txt
numbers.txt
The largest file was: 
The smallest file was: 
$ls /var/books/
arthur-conan-doyle_The-hound-of-baskervilles.txt  arthur-conan-doyle_The-valley-of-fear.txt  mary-roberts-rinehart_The-circular-staircase.txt
arthur-conan-doyle_The-hound-of-baskervilles.zip  arthur-conan-doyle_The-valley-of-fear.zip

关于我做错了什么或从哪里去的任何建议？谢谢！

Answer 1

替换它：

find $dir -type f -name $ext
for file in *$ext
do
echo $file
done

有了这个：

find "$dir" -type f -name "*.$ext"

解释

find $dir -type f -name $ext

以上搜索$dir查找名称正好 $ext的文件。很可能没有这样的文件。

相反，以下内容忽略$dir并在当前目录中搜索扩展名为$ext的文件：

for file in *$ext
do
echo $file
done

请注意，由于$dir或$ext可能包含空格或其他困难字符，因此它们应为双引号。

Bash脚本不搜索给定目录

1 个答案:

解释