我正在Linux上编写bash脚本,需要遍历给定目录中的所有子目录名。如何遍历这些目录(并跳过常规文件)?

例如: 指定目录为/tmp/ 目录包括:/tmp/A、/tmp/B、/tmp/C

我想找回A B C。


当前回答

find . -mindepth 1 -maxdepth 1 -type d -printf "%P\n"

其他回答

找到。-type d -maxdepth

如果你想在一个for循环中执行多个命令,你可以用mapfile (bash >= 4)将find的结果保存为一个变量,然后用${dirlist[@]}遍历数组。它还适用于包含空格的目录。

find命令基于Boldewyn的回答。关于find命令的更多信息可以在这里找到。

IFS=""
mapfile -t dirlist < <( find . -maxdepth 1 -mindepth 1 -type d -printf '%f\n' )
for dir in ${dirlist[@]}; do
    echo ">${dir}<"
    # more commands can go here ...
done

到目前为止,所有答案都使用find,这里有一个只有外壳的答案。在您的情况下不需要外部工具:

for dir in /tmp/*/     # list directories in the form "/tmp/dirname/"
do
    dir=${dir%*/}      # remove the trailing "/"
    echo "${dir##*/}"    # print everything after the final "/"
done
cd /tmp
find . -maxdepth 1 -mindepth 1 -type d -printf '%f\n'

简单解释一下:

find finds files (quite obviously) . is the current directory, which after the cd is /tmp (IMHO this is more flexible than having /tmp directly in the find command. You have only one place, the cd, to change, if you want more actions to take place in this folder) -maxdepth 1 and -mindepth 1 make sure that find only looks in the current directory and doesn't include . itself in the result -type d looks only for directories -printf '%f\n prints only the found folder's name (plus a newline) for each hit.

就是这样!

find . -mindepth 1 -maxdepth 1 -type d -printf "%P\n"