我想复制五个文件的内容到一个文件。我试着对每个文件使用cp。但是这会覆盖从上一个文件复制的内容。我也试过
paste -d "\n" 1.txt 0.txt
但这并没有奏效。
我希望我的脚本在每个文本文件的末尾添加换行符。
如。文件1.txt, 2.txt, 3.txt。把1,2,3的内容放在0.txt中
我该怎么做?
当前回答
If the original file contains non-printable characters, they will be lost when using the cat command. Using 'cat -v', the non-printables will be converted to visible character strings, but the output file would still not contain the actual non-printables characters in the original file. With a small number of files, an alternative might be to open the first file in an editor (e.g. vim) that handles non-printing characters. Then maneuver to the bottom of the file and enter ":r second_file_name". That will pull in the second file, including non-printing characters. The same could be done for additional files. When all files have been read in, enter ":w". The end result is that the first file will now contain what it did originally, plus the content of the files that were read in.
其他回答
If the original file contains non-printable characters, they will be lost when using the cat command. Using 'cat -v', the non-printables will be converted to visible character strings, but the output file would still not contain the actual non-printables characters in the original file. With a small number of files, an alternative might be to open the first file in an editor (e.g. vim) that handles non-printing characters. Then maneuver to the bottom of the file and enter ":r second_file_name". That will pull in the second file, including non-printing characters. The same could be done for additional files. When all files have been read in, enter ":w". The end result is that the first file will now contain what it did originally, plus the content of the files that were read in.
您需要cat (concatenate的缩写)命令，并将shell重定向(>)导入到输出文件
cat 1.txt 2.txt 3.txt > 0.txt
另一个选择，对于那些像我一样偶然发现这篇文章的人来说，是使用find -exec:
find . -type f -name '*.txt' -exec cat {} + >> output.file
在我的例子中，我需要一个更健壮的选项，可以查看多个子目录，所以我选择使用find。分解一下:
find .
查看当前工作目录。
-type f
只对文件感兴趣，而不是目录等。
-name '*.txt'
按名称缩减结果集
-exec cat {} +
对每个结果执行cat命令。"+"表示只生成一个cat实例(thx @gniourf_gniourf)
>> output.file
正如在其他答案中解释的那样，将cat-ed内容附加到输出文件的末尾。
如果你想将3个文件的内容追加到一个文件中，那么下面的命令将是一个很好的选择:
cat file1 file2 file3 | tee -a file4 > /dev/null
它将所有文件的内容合并到file4中，将控制台输出抛出到/dev/null.
如果你所有的文件名称都类似，你可以简单地这样做:
cat *.log >> output.log
