之前看到一篇blog：[http://blog.slogra.com/post-535.html]
里面的脚本比较实用，所以我就学习了一下，然后根据网上学习的方法，将博主后来提出的批量移动功能加了进去，在此做个备忘：
#!/bin/bash
DIR1=/root/backup
DIR2=/root/tmp
if [ ! -d $DIR2 ];then
mkdir $DIR2
fi
rm -rf $DIR2/*
cp -ra $DIR1/* $DIR2/
for i in $DIR2/*;do ls --full-time $i | awk '{print $6}' >>/root/1.txt; done
for i in `awk '!a[$0]++' /root/1.txt | sort`;do
mkdir $DIR2/$i;
find $DIR2 -type f -newermt $i -print0 | xargs -0 mv -t $DIR2/$i
done
在此也谢谢原博主给我提供这个原始脚本和学习的机会*^_^*
《 “批量按时间复制至对应文件夹的shell脚本” 》 有 5 条评论
不是所有版本的`mv`命令都支持`-t`选项，所以建议将上面的命令：
`find $DIR2 -type f -newermt $i -print0 | xargs -0 mv -t $DIR2/$i
`
修改成：
`find $DIR2 -type f -newermt $i -print0 | xargs -0 -I ‘{}’ mv {} $DIR2/$i
`
上面的find命令中`-newermt $i`的意思是：用find命令查找比文件`$i`的`modification time`更新的文件。
`-newerXY file
True if the current file has a more recent last access time (X=a), inode creation time (X=B), change time (X=c), or modification time (X=m) than the last access time (Y=a), inode creation time (Y=B), change time (Y=c), or modification time (Y=m) of file. In addition, if Y=t, then file is instead interpreted as a direct date specification of the form understood by cvs(1). Note that -newermm is equivalent to -newer.
`
`
$ cat test.txt | xargs
line1 line2 line3 line4 line5 line6 line7 line8 line9 line10 line11 line12 line13 line14 line15 line16 line17 line18 line19 line20
$ cat test.txt | xargs -n1 printf ‘”%s” ‘
“line1” “line2” “line3” “line4” “line5” “line6” “line7” “line8” “line9” “line10” “line11” “line12” “line13” “line14” “line15” “line16” “line17” “line18” “line19” “line20″ %
$ cat test.txt | xargs -n1 -I @ echo -n ‘”@” ‘
“line1” “line2” “line3” “line4” “line5” “line6” “line7” “line8” “line9” “line10” “line11” “line12” “line13” “line14” “line15” “line16” “line17” “line18” “line19” “line20” %
`
http://offbytwo.com/2011/06/26/things-you-didnt-know-about-xargs.html
https://stackoverflow.com/questions/6958689/xargs-with-multiple-commands-as-argument
https://stackoverflow.com/questions/17196230/bash-print-each-input-string-in-a-new-line
https://unix.stackexchange.com/questions/89130/format-output-of-xargs
基于 bash shell 脚本制定灵活的 trimlog 日志清理策略
https://www.v2ex.com/t/607138
https://wsgzao.github.io/post/trimlog/
基于 bash find 命令执行 log 日志备份和清理的一次简单实践
https://wsgzao.github.io/post/find/
Cross-platform backup tool for Windows, macOS & Linux with fast, incremental backups, client-side end-to-end encryption, compression and data deduplication. CLI and GUI included.
https://github.com/kopia/kopia/
`
一个开源的备份工具，可以把数据定时向云端做增量备份。
`