Iterating over directory and replacing '+' from a file name to '_' in bash

Question

I have a directory named as assets, which in further has a set of directories.

user_images
|-content_images
  |-original
  |-cropped
  |-resize
|-gallery_images
|-slider_images
|-logo

These folders can have folders like original, cropped, resize. And these folders further will have images. These images are named something like this – 14562345+Image.jpeg. I need to replace all the images/files that have + to _.

for f in ls -a;
do
     if [[ $f == ​+​ ]]
       then                
         cp "$f" "${f//+/_}"
       fi
done

I was able to do this in the current directory. But I need to iterate this to other many other directories. How can I do that?

Answer 1

You can use this loop using find in a process substitution:

cd user_images

while IFS= read -r -d '' f; do
   echo "$f"
   mv "$f" "${f//+/_}"
done < <(find . -name '*+*' -type f -print0)

Answer 2

With find -exec:

find user_images -type f \
-exec bash -c '[[ $0 == *+* ]] && mv "$0" "${0//+/_}"' {} \;

Notice that this uses mv and not cp as the question states "rename", but simply replace by cp if you want to keep the original files.

The bash -c is required to be able to manipulate the file names, otherwise we could use {} directly in the -exec action.

Answer 3

以下将以递归方式运行，并将使用_：

重命名所有替换+的文件

find . -name '*+*' -type f -execdir bash -c 'for f; do mv "$f" "${f//+/_}"' _ {} +

请注意使用-execdir：

  

与-exec类似，但指定的 命令是从包含匹配文件 的子目录运行的，该子目录通常不是您开始查找的目录 - 引自man find。

如果目录名与您不想重命名的模式*+*匹配，这将保护我们。