嵌套for bash脚本中的目录循环

Question

for d in dirlist;  
do  
    cd $d  
    echo $PWD "primul"  
    for p in *.HEIC;  
    do  
        echo $PWD "din al doilea"  
        if [ -e "COPY ${p%.*}.jpg" ]; then  
            echo "COPY ${p%.*}.jpg exists"  
        else  
            convert $p "COPY ${p%.*}.jpg"  
            echo "COPY ${p%.*}.jpg created"  
        fi  
    done  
done 

I have written a script to convert all files that are .HEIC to .jpg. Now I have a structure of folders that is

/main/2019/01  
/main/2019/03  
/main/2018/12  
/main/2018/11  
/main/2018/10  
/main/2018/09  

And I want to run the second for in each directory.

What I get when I run the commands below is only a list of directories and a mention that there are no files to convert.

How do I change the directory using the first for and run the second for in that directory?

Answer 1

cd - changes to the previous directory. That one solution to put it after the first done (second for cycle).

pushd and popd using stack to handle directory changes
check out: https://www.gnu.org/software/bash/manual/html_node/Directory-Stack-Builtins.html