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读取文件夹和子文件夹中的所有文件 - 进度和大小

tag-icon • tag-icon bash shell-script files recursive benchmark
读取文件夹和子文件夹中的所有文件 - 进度和大小

我的命令是：

time find . -type f -print -exec cp {} /dev/null \;

此命令查找当前文件夹和子文件夹中的所有文件，打印每个文件的名称并将它们复制到 /dev/null。最后它显示复制所有文件花费了多少时间。

我需要的是在末尾计算（显示）所有复制的字节（这样我就能够计算读取速度//缓存无关紧要//）和/或在文件名称旁边显示每个文件的大小。

如果能够显示每个文件 (pv) 的进度 -那就太好了！

为此，我使用 Cygwin 及其 bash shell，但脚本也应该在真正的 Linux 系统上运行。

编辑：这个想法是读取文件，而不是复制它们（rsync）。

答案1

不确定我完全理解你的问题，但是：

find . -type f -exec pv -N {} {} \; > /dev/null

给出如下输出：

  ./file1:  575kB 0:00:00 [1.71GB/s] [=======================>] 100%
  ./file2: 15.2GB 0:00:07 [2.22GB/s] [==>                      ] 15% ETA 0:00:38

答案2

而不是使用cpandfind对于此任务，您可能需要考虑使用rsync。

例子

$ time rsync -avvz -O --stats --checksum --human-readable \
    --acls --itemize-changes --progress \
    --out-format='[%t] [%i] (Last Modified: %M) (bytes: %-10l) %-100n' \
    "<fromDir>" "<toDir>" | tee /path/to/log.txt

例子

这将生成一个如下所示的报告。

命令

$ time rsync -avvz -O --stats --checksum --human-readable --acls --itemize-changes --progress --out-format='[%t] [%i] (Last Modified: %M) (bytes: %-10l) %-100n' "How_to_Write_Shared_Libraries" "/home/saml/newdir/." | tee ~/rsync.txt

每个传输文件的详细信息

sending incremental file list
delta-transmission disabled for local transfer or --whole-file
[2014/05/31 15:12:34] [cd+++++++++] (Last Modified: 2014/02/21-15:42:44) (bytes: 4096      ) How_to_Write_Shared_Libraries/                                                                      
[2014/05/31 15:12:34] [>f+++++++++] (Last Modified: 2013/12/06-19:59:22) (bytes: 766590    ) How_to_Write_Shared_Libraries/dsohowto.pdf                                                          
     766.59K 100%   20.00MB/s    0:00:00 (xfer#1, to-check=1/3)
[2014/05/31 15:12:34] [>f+++++++++] (Last Modified: 2014/02/21-15:42:44) (bytes: 44        ) How_to_Write_Shared_Libraries/url.txt                                                               
          44 100%    1.23kB/s    0:00:00 (xfer#2, to-check=0/3)
total: matches=0  hash_hits=0  false_alarms=0 data=766634

有关整个转会的统计数据

rsync[5923] (sender) heap statistics:
  arena:        1073152   (bytes from sbrk)
  ordblks:            5   (chunks not in use)
  smblks:             1
  hblks:              2   (chunks from mmap)
  hblkhd:        401408   (bytes from mmap)
  allmem:       1474560   (bytes from sbrk + mmap)
  usmblks:            0
  fsmblks:           96
  uordblks:      410512   (bytes used)
  fordblks:      662640   (bytes free)
  keepcost:      396928   (bytes in releasable chunk)

rsync[5926] (server receiver) heap statistics:
  arena:         286720   (bytes from sbrk)
  ordblks:            2   (chunks not in use)
  smblks:             5
  hblks:              3   (chunks from mmap)
  hblkhd:        667648   (bytes from mmap)
  allmem:        954368   (bytes from sbrk + mmap)
  usmblks:            0
  fsmblks:          384
  uordblks:      180208   (bytes used)
  fordblks:      106512   (bytes free)
  keepcost:      102336   (bytes in releasable chunk)

rsync[5925] (server generator) heap statistics:
  arena:         135168   (bytes from sbrk)
  ordblks:            2   (chunks not in use)
  smblks:             6
  hblks:              2   (chunks from mmap)
  hblkhd:        401408   (bytes from mmap)
  allmem:        536576   (bytes from sbrk + mmap)
  usmblks:            0
  fsmblks:          464
  uordblks:       88688   (bytes used)
  fordblks:       46480   (bytes free)
  keepcost:       32800   (bytes in releasable chunk)

转会统计摘要

Number of files: 3
Number of files transferred: 2
Total file size: 766.63K bytes
Total transferred file size: 766.63K bytes
Literal data: 766.63K bytes
Matched data: 0 bytes
File list size: 143
File list generation time: 0.001 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 667.27K
Total bytes received: 54

sent 667.27K bytes  received 54 bytes  1.33M bytes/sec
total size is 766.63K  speedup is 1.15

花费的时间

real    0m0.092s
user    0m0.053s
sys     0m0.008s

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