foreword
Sometimes we delete some files with specified suffixes in batches. Next, let’s take deleting .meta files in a certain folder as an example ( if you want to delete files with other suffix formats, you can read the tips in the fourth part ).
1. Generate executable files
Tip: Before performing the delete operation, we first create an executable file.
1. Create a new file (not a folder) with no suffix format, for example, the file name is clear_meta .
2. Open the terminal, and cd to the directory where clear_meta is located.
3. Enter the command sudo chmod u+x clear_meta in the terminal .
4. After successful execution, the clear_meta file becomes an executable file.
2. Edit the clear_meta file
Tip: Open clear_meta with developer tools and edit the following command lines.
#!/bin/bash
function clearmeta()
{
cd $1
echo $1
cfilelist=$(ls -A)
for cfilename in $cfilelist
do
s=$cfilename
arr=(${
s//./ })
if [[ ${
arr[${
#arr[@]}-1]} == meta ]] # 注释1语句
then
sudo rm -rf $cfilename
elif [ -d $cfilename ]
then
clearmeta $(pwd)"/"$cfilename
fi
done
cd ..
}
clearmeta $1
3. Perform the delete.meta operation
1. For example, we have a folder named public , which contains many subdirectories and files, and of course there are corresponding .meta files, as shown in the figure below. We need to delete the .meta file in it .
2. Open the terminal, and directly drag the clear_meta file in ( do not press Enter at this time, and do not enter other characters ); then, drag the public file in, and then click Enter to perform the operation. 3. The terminal will output a series of delete operation logs, and wait for the execution to end. The .meta
file in our public folder has been deleted.
4. Friendly Tips
To delete suffix files in other formats, you only need to change the above statement of Note 1 into this code (take deleting .txt as an example).
${
arr[${
#arr[@]}-1]} == txt
In addition, if you want to learn more about using scripts to manipulate files, you can check the article Using shell scripts to modify file names in batches , I hope it will be helpful to you.