bash 如何将一个文件的行附加到另一个文件的每一行的末尾？
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How do I append lines from one file to the end of each line of another file?
提问by donatello
Suppose I have two files:
假设我有两个文件：
cat dog baboon
feline canine primate
I want to append the lines from one file at the end of another file after adding a space. I know a way to do this using a for loop in bash, but I think there is a single command that can do this sort of thing, and I just can't remember it.
添加空格后，我想将一个文件中的行附加到另一个文件的末尾。我知道一种在 bash 中使用 for 循环来执行此操作的方法，但我认为有一个命令可以执行此类操作，但我不记得了。
The output should look like:
输出应如下所示：
cat feline dog canine baboon primate
回答by Lekensteyn
paste --delimiter=' ' file1 file2
Note: the result will be written to stdout. If you want to store the result in a file, use a redirection operator:
注意：结果将写入标准输出。如果要将结果存储在文件中，请使用重定向运算符：
paste --delimiter=' ' file1 file2 > outputfile
Run man pastefor more information about the command.
运行man paste以获取有关该命令的更多信息。
