shell脚本来遍历目录 [英] Shell script to traverse directories

问题描述

我的工作，需要大量的图像文件的批量处理的项目。为了方便起见，我写了一个脚本，将创建 N 目录和基于移动 M 文件给他们用户输入。

I'm working on a project that requires batch processing of a large number of image files. To make things easier, I've written a script that will create n directories and move m files to them based on user input.

我的问题是到现在为止通过shell脚本理解目录遍历。

My issue is to now understand directory traversal via shell script.

我在上面

dirlist=$(find $1 -mindepth 1 -maxdepth 1 -type d)

for dir in $dirlist
do
  cd $dir
  echo $dir
  ls
done

当我跑它Pano2文件夹，whcih包含两个内部文件夹里面，我总是得到一个错误

When I ran it inside a Pano2 folder, whcih contains two inner folders, I always got an error

./dirTravel: line 9: cd: Pano2/05-15-2012-2: No such file or directory

不过，在那之后，我得到的文件从指定的目录列表。

However, after that, I get the file listing from specified directory.

有什么警告背后的原因是什么？如果我 LS之后添加 CD ../ 我进去Pano2 /，而不是文件的文件夹上市他们自己。

What is the reason behind the warning? If I add cd ../ after ls I get the listing of the folders inside Pano2/, but not the files themselves.

推荐答案

我的猜测是，你会在两个层次深，但只回来了一个级别。尝试 LS后加入 CD ../.. ，或使用 PUSHD 和 POPD 来代替。

My guess is that you're going in two levels deep, but only coming back up one level. Try adding a cd ../.. after the ls, or use pushd and popd instead.

例如：

for dir in $dirlist
do
  pushd $dir
  echo $dir
  ls
  popd
done

由于@shellter指出，如果这些目录中有空格，那么这样的事情可能会更好地工作：

As @shellter points out, if those directories have spaces, then something like this might work better:

find $1 -mindepth 1 -maxdepth 1 -type d | while read -r dir
do
  pushd "$dir"  # note the quotes, which encapsulate whitespace
  echo $dir
  ls
  popd
done

这篇关于shell脚本来遍历目录的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！