Bash script

for each directory

for D in *; do
    if [ -d "${D}" ]; then
        echo "${D}"   # your processing here
    fi
done

for D in */; do my_command; done

Bash: for each directory

7-zip

7z a output.7z input

7z a 94-2-Algorithms.7z 94-2-Algorithms

實用的 7-Zip 指令

7-Zip Error: there is no such archive

for each directory 7zip

沒有考慮非目錄的存在

for D in *; do 7z a $D.7z $D; done