安卓shell 移动某个时间之后的文件到另外一个文件夹 命令记录

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -1 -type f -exec ls -l {} \+

shuchushuliang() {

  local count1=$(ls -l /storage/emulated/0/DCIM/"$1" | wc -l)

  local count2=$(ls -l /storage/emulated/0/DCIM/"$2" | wc -l)

  local total=$(expr $count1 + $count2)

  echo "$count1 $count2 $total"

}

shuchushuliang Camera Camera.new

供先测试一下

---

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -1 -type f -exec mv -iv "{}" /storage/emulated/0/DCIM/Camera.new \;

（/storage/emulated/0/DCIM/Camera.new和/storage/emulated/0/DCIM/Camera.new/  最后的斜杠加不加都行）

 

指定具体的日期 尴尬了 发现toybox的这个find不能用newermt

受不了了，toybox啥都不全，老多功能没有，用mt内置的终端了，这个全

 

测试用：

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -type f -newermt "2024-06-01" ! -newermt "2024-08-01" -exec ls -l {} \;

移动：

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -type f -newermt "2024-06-01" ! -newermt "2024-08-01" -exec mv -iv "{}" /storage/emulated/0/DCIM/Camera.6yue \;

 

newermt意思就是修改时间modify time比后边的值新的文件

 

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -type f -newermt "2024-06-01" !-newermt "2024-06-02" -exec ls -l {} \;
find: bad arg '-newermt'

 

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -type f -newer "2024-06-01" ! -newer "2024-06-02" -exec ls -l {} \;
find: Can't stat 2024-06-01: No such file or directory

-newer FILE     newer mtime than FILE

 

lrwxr-xr-x 1 root shell 6 2009-01-01 08:00 /system/bin/find -> toybox

 

算了，手算mtime吧 移进去一个完整功能的find更麻烦 用这个网址算https://tl.beer/shijiancha.html

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -168 -mtime +167 -type f -exec ls -l {} \+

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -168 -mtime +167 -type f -exec mv -iv "{}" /storage/emulated/0/DCIM/Camera.6yue \+ 

 

-print0 | xargs -0 -I {} mv -iv {} /storage/emulated/0/DCIM/Camera.6yue

还是不行，toybox的xargs没有-I {}这个用法

 

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -168 -mtime +167 -type f -exec mv -iv "{}" /storage/emulated/0/DCIM/Camera.6yue \+
find: -exec without \;

用-exec ... {} +时，{}必须是+之前的最后一项。这就是他使用mv -t destdir {} +而不是mv {} destdir + 的原因。有人曾使用-exec mv {} destdir ';'代替，但那样会为每个文件执行一次mv 。

 

-exec mv -iv -t path_B {} +不行，因为toybox的mv没有t参数

 

ls -l /storage/emulated/0/DCIM/Camera | wc -l

ls -l /storage/emulated/0/DCIM/Camera.new | wc -l

 

 

count1=$(ls -l /storage/emulated/0/DCIM/Camera | wc -l)
count2=$(ls -l /storage/emulated/0/DCIM/Camera.new | wc -l)
total=$(expr $count1 + $count2)
echo "$count1 $count2 $total"

 

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -1 -type f -exec ls -l {} \;

 

mt管理器

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -type f -newermt "2024-06-01" ! -newermt "2024-06-02" -exec ls -l {} \;

bash: ! : event not found 看起来是不支持newermt

 

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -168 -mtime +165 -type f -exec mv -iv -t /storage/emulated/0/DCIM/Camera.6yue {} +

终于成功运行了，2975个文件 大概32秒

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -165 -mtime +160 -type f -exec mv -iv "{}" /storage/emulated/0/DCIM/Camera.6yue \;

老方法 3912个文件 大概210秒

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -161 -mtime +155 -type f -exec mv -iv -t /storage/emulated/0/DCIM/Camera.6yue {} +

6225个文件 大概182秒（口数） 这样看来，用+，速度大概快1.5倍，快的不是很明显

find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -155 -mtime +150 -type f -exec mv -i -t /storage/emulated/0/DCIM/Camera.6yue {} +

取消了-v输出信息    3770个文件 大概150秒 快的不是很明显

这样看来，速度瓶颈应该在于find，find在大量文件的目录中速度太慢。有时间试一下fd的并行查找，暂时没时间整了

 

安卓mt管理器图形界面文件移动速度测试

5232个文件，大概150秒 这样看来这速度跟我费劲半天敲命令行差不多啊。。。

130|cas:/ $ xargs --help

usage: xargs [-0prt] [-s NUM] [-n NUM] [-E STR] COMMAND...

Run command line one or more times, appending arguments from stdin.

If command exits with 255, don't launch another even if arguments remain.

-0      Each argument is NULL terminated, no whitespace or quote processing
-E      Stop at line matching string
-n      Max number of arguments per command
-p      Prompt for y/n from tty before running each command
-r      Don't run command with empty input
-s      Size in bytes per command line
-t      Trace, print command line to stderr

find --help

usage: find [-HL] [DIR...] [<options>]

Search directories for matching files.
Default: search "." match all -print all matches.

-H  Follow command line symlinks         -L  Follow all symlinks

Match filters:
-name  PATTERN  filename with wildcards   -iname      case insensitive -name
-path  PATTERN  path name with wildcards  -ipath      case insensitive -path
-user  UNAME    belongs to user UNAME     -nouser     user ID not known
-group GROUP    belongs to group GROUP    -nogroup    group ID not known
-perm  [-/]MODE permissions (-=min /=any) -prune      ignore contents of dir
-size  N[c]     512 byte blocks (c=bytes) -xdev       only this filesystem
-links N        hardlink count            -atime N[u] accessed N units ago
-ctime N[u]     created N units ago       -mtime N[u] modified N units ago
-newer FILE     newer mtime than FILE     -mindepth # at least # dirs down
-depth          ignore contents of dir    -maxdepth # at most # dirs down
-inum  N        inode number N            -empty      empty files and dirs
-type [bcdflps]   (block, char, dir, file, symlink, pipe, socket)
-context PATTERN  security context

Numbers N may be prefixed by a - (less than) or + (greater than). Units for
-Xtime are d (days, default), h (hours), m (minutes), or s (seconds).

Combine matches with:
!, -a, -o, ( )    not, and, or, group expressions

Actions:
-print   Print match with newline  -print0    Print match with null
-exec    Run command with path     -execdir   Run command in file's dir
-ok      Ask before exec           -okdir     Ask before execdir
-delete  Remove matching file/dir

Commands substitute "{}" with matched file. End with ";" to run each file,
or "+" (next argument after "{}") to collect and run with multiple files.

cas:/storage/emulated/0/DCIM/Camera $ find --version
toybox 0.8.0-android

 

 

history命令，输出adb shell的历史命令

cas:/storage/emulated/0/DCIM/Camera $ history
1       cd /storage/emulated/0/DCIM/
2       ls
3       cd Camera
4       ls -l | wc -l
5       find . -mindepth 1 -maxdepth 1 -mtime -3
6       find --help
7       cd ..
8       find
9       
10      cd /storage/emulated/0/DCIM/
11      ls
12      cd Camera
13      ls -l | wc -l
14      find . -mindepth 1 -maxdepth 1 -mtime -1 -exec ls -ld "{}" \;

 

 

数字加法

8       expr 106042 + 6551
9       expr 99235 +13358（expr: Unexpected extra input '+13358'）
10      expr 99235 + 13358