nohup rsync -avhPc /source/directory/ /destination/directory/ &
或者tmux/screen里直接执行
rsync -avhPc /source/directory/ /destination/directory/
好习惯用rsync 代替mv，可以一点一点拷贝。 -c 拷完检查完整性，-a归档模式,基本保留完整属性, -vh 打一大堆，数字人类可读以GB展示，-P partial files 按部分文件一点点拷贝.并打印进度条 99%之类的 

cp (copy files and directories)
rm (remove files or directories)
dd (convert and copy a file)
tar (tape archive, for creating archives of files)
grep (search for text in files)
scp (可以用rsync替代)

I/O-bound or the tasks are not easily parallelizable
很多操作是受IO性能限制，或者本身不太容易并行。

rsync -avz -e ssh /path/to/local/file user@remotehost:/path/to/remote/file
## 如果实在想多线程
find /path/to/source -type f | parallel -j 10 rsync -avz {} user@remotehost:/path/to/destination/

其他多线程命令：

As for multi-threaded commands in Linux, here’s a list of commands and utilities that can utilize multiple threads:

1. pigz: A multi-threaded implementation of gzip for compression.
2. pbzip2: A parallel implementation of bzip2 for data compression.
3. lbzip2: Another multi-threaded bzip2 utility.
4. pxz: Parallel LZMA compressor using liblzma.
5. plzip: A parallel, lossless data compressor based on the LZMA algorithm.
6. zstd: Offers multi-threaded compression and decompression.
7. parallel: Not a direct replacement for any specific command, but can be used to run any command in parallel.
8. rsync: Can utilize multiple cores when combined with tools like parallel.
9. samtools: Used in bioinformatics for processing SAM and BAM files, with multi-threading support for compression and decompression.
10. ffmpeg: A multimedia framework that can use multiple threads for video encoding and decoding.
11. maketorrent-cli: A command-line utility to create BitTorrent files in parallel.
12. aria2c: A lightweight multi-protocol & multi-source, cross platform download utility operated in command-line with multi-threading support.
13. lftp: While primarily single-threaded, it can open multiple connections to speed up FTP/SFTP transfers.

这些尤其是CPU限制的操作如压缩和编码。（对了，注意别把CPU打满把运行中的服务打爆了）
These utilities are specialized for certain tasks where multi-threading provides a benefit, particularly for CPU-bound operations like compression or encoding. When using any multi-threaded utility, it’s important to consider the resources available on the system to avoid overloading the CPU or other system resources.

SRE升级Path/成长之路: 1. https://wsgzao.github.io/post/sre/
2. https://www.bilibili.com/video/BV1Z5411D7Gb

滴滴崩溃听说是K8S版本升爆了（错误升到旧版导致依赖炸了，甚至无法重启）。猜测是重装。（纯属猜测，不保证准确性）
阿里云香港机房全面崩溃后，又全体服务崩溃。再加上之前上某海的高端操作。有些滑稽，经济差关系差难搞啊。
不过cf 11月2日也爆过，据说停电坑了、、

加上现在越来越不安稳了，云安全越来越难以保障。