bash 如何在bash中一一读取ls命令列出的文件？
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how to read files listed by ls command one by one in bash?
提问by user3714598
I want to read all the files in a particular directory, and I want to read it one by one.
我想读取一个特定目录下的所有文件，我想一个一个地读取它。
Here's what i've done so far. ls successfully get all the files from a specified directory, but could not give the file names to me one by one. It Echos the files one time only. I want to get it one by one because I need to do some parsing and use it somehwere.
这是我到目前为止所做的。ls 成功获取了指定目录下的所有文件，但是无法一一给我文件名。它只回显文件一次。我想一一得到它，因为我需要做一些解析并在某个地方使用它。
#!/bin/sh
echo Content-type: application/json
echo ""
for output in "ls /home/myComputer/Desktop/*";
do
echo $output
done
回答by aioobe
You can do
你可以做
for output in /home/myComputer/Desktop/*
do
echo $output
done
If there's any risk that /home/myComputer/Desktopis empty, please follow @JIDs advice in the comments below.
如果有任何/home/myComputer/Desktop空白的风险，请在下面的评论中遵循@JIDs 的建议。
回答by Walter A
The next solution also works when the dir is empty.
当目录为空时，下一个解决方案也适用。
ls /home/myComputer/Desktop/ 2>/dev/null |while read -r output; do
echo ${output}
done
This construction is nice to know, for when you want to split the input lines in some fields:
这种结构很高兴知道，因为当您想在某些字段中拆分输入行时：
cat someFile | while read -r field1 field2 remainingfields; do
