'cat file‘stdout与'cat file > textfile’不同

Question

当我测试我的亚马逊网络服务备份数据(用$(aws同步日志文件)收集)时，当我' cat‘该文件时，数据看起来很好，但是如果我'grep yada yada|sed yada yada backup.log > newfile'，然后通过管道将其发送到’s3‘或使用'vi’查看它，它现在会在标准输出中显示额外的字符。举个例子：

cat到标准输出

$ cat aws.tail.log
Starting aws backup Wed Apr 17 00:01:01 EDT 2019

upload: zim/Beer/.zim/state.conf to s3://...
upload: Documents/testfile to s3://...



Completed  aws backup Wed Apr 17 00:01:52 EDT 2019

cat重定向至文件

$ cat aws.tail.log > aws.email.txt
$ vi aws.email.txt  

here's what I see in vi:

Starting aws backup Wed Apr 17 00:01:01 EDT 2019
Completed 0 file(s) with ~0 file(s) remaining (calculating...)^M                                                              
Completed 2.5 KiB/~225.5 KiB (14.8 KiB/s) with ~3 file(s) remaining (calculating...)^Mupload: zim/Beer/.zim/state.conf to s3://
Completed 2.5 KiB/~225.5 KiB (14.8 KiB/s) with ~2 file(s) remaining (calculating...)^MCompleted 3.5 KiB/~225.5 KiB (3.5 KiB/s) with ~2 file(s) remaining (calculating...) ^Mupload: zim/Beer/h
ouse/tech/sterling/notifications.txt to s3://
Completed 226.1 KiB/~226.1 KiB (70.3 KiB/s) with ~0 file(s) remaining (calculating...)^M                                                                                      
Completed 0 file(s) with ~0 file(s) remaining (calculating...)^MCompleted 0 file(s) with ~0 file(s) remaining (calculating...)^MCompleted 0 file(s) with ~0 file(s) remaining (calculating...)
^MCompleted 0 file(s) with ~0 file(s) remaining (calculating...)^MCompleted 0 file(s) with ~0 file(s) remaining (calculating...)^MCompleted 0 file(s) with ~0 file(s) remaining (calculating..
.)^MCompleted 0 file(s) with ~0 file(s) remaining (calculating...)^MCompleted 0 file(s) with ~0 file(s) remaining (calculating...)^MCompleted 0 file(s) with ~0 file(s) remaining (calculating
...)^MCompleted 0 file(s) with ~0 file(s) remaining (calculating...)^M

当我使用$(cat daily_stats.txt |mail -s "subject“$EMAIL)或$(mail -s "subject”$EMAIL )发送电子邮件时，这也会显示在电子邮件正文中

我尝试过过滤掉^M个字符，但它只能做到这一点。也尝试过: sed -r "s/\x1B[(0-9{1,2}(;0-9{1,2})?)?m|K//g“和perl -p -e 's/\r//g‘

而且，额外的行数(已完成0个文件，剩余~0个文件(计算中...)^M)

有谁知道如何将我看到的来自'cat‘的stdout转换成电子邮件或文本文件，而不需要额外的jazz？

谢谢!

Answer 1

这应该是可行的：

cat aws.tail.log | col -b > aws.email.txt

我建议针对该工具提交一个bug，写下关于自动检测非终结符和不使用控制字符的日志。