Linux Shell 脚本：将目录的内容列出到文件中
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Linux Shell Script: list contents of a directory into a file
提问by Jim
i have to write a shell script that gets a directory name as a parameter and then lists the names and sizes of the files in the directory into a text file. I have little knowledge of linux so can you please help me?
我必须编写一个 shell 脚本，它获取目录名称作为参数，然后将目录中文件的名称和大小列出到文本文件中。我对linux知之甚少，所以你能帮我吗？
All i managed to write is this:
我设法写的是这样的：
for entry in "$search_dir"/*
do
if [ -f "$entry" ];then
echo "$entry"
fi
done
The output file should look like this:
输出文件应如下所示：
filename1 filesize1
filename2 filesize2
I have problems about getting the directory name as a parameter
我在获取目录名称作为参数时遇到问题
回答by sharpner
like this:
像这样：
#! /bin/bash
if [ $# -gt 0 ] ; then
ls > textfile.txt
else
echo "Please provide Foldername";
fi
additionally you could check if $1 is a folder but this should suffice
另外你可以检查 $1 是否是一个文件夹，但这应该就足够了
回答by Nick Weaver
You could easily put the output of a script into a file using >
您可以使用>轻松地将脚本的输出放入文件中
For example
例如
ls /tmp > ./contentsOfDir.txt
will dump the ls command into the contentsOfDir.txt in your current directory.
将 ls 命令转储到当前目录中的 contentsOfDir.txt 中。
The script could look like this for a bash shell:
对于 bash shell，脚本可能如下所示：
#!/bin/bash
ls -l > contentsOfDir.txt
and is called
并被称为
./myScript dirNameToBeDumpedInFile
Have a look at this bash scripting tutorial, it covers the basics.
看看这个 bash 脚本教程，它涵盖了基础知识。
回答by knittl
#!/bin/sh
if [ ! -d "" ]; then
echo "usage: 4.0K ./bundle.h
24K ./walker.o
4.4M ./git-show
4.0K ./sha1-lookup.h
100K ./refs.o
<directory>";
exit 1;
fi
cd ;
find -maxdepth 1 -type f -print0 | xargs -0 -n1 du -h;
cd -;
this will output something like:
这将输出如下内容：
sudo apt-get install tree
回答by Ramy Nasr
If you want to print a pretty tree of the folder content and it's subfolders, you can use "tree".
如果要打印文件夹内容及其子文件夹的漂亮树，可以使用“树”。
If it's not install on your system, You need to do so first:
如果它没有安装在你的系统上，你需要先这样做：
tree -h -A path/to/dir > output.txt
Then the syntax is pretty simple. If you want to save the output to a file:
然后语法非常简单。如果要将输出保存到文件：
> tree --help
-a All files are listed.
-d List directories only.
-l Follow symbolic links like directories.
-f Print the full path prefix for each file.
-L level Descend only level directories deep.
-o filename Output to file instead of stdout.
-s Print the size in bytes of each file.
-h Print the size in a more human readable way.
--dirsfirst List directories before files (-U disables).
-Ais used to make sure the output is using ASCII characters.-hwill print each file size in a human readable format.
-A用于确保输出使用 ASCII 字符。-h将以人类可读的格式打印每个文件大小。
You have more options to limit the output that you can get by using the "--help" option:
您有更多选项来限制使用“--help”选项可以获得的输出：
##代码##