find /storage/emulated/0/DCIM/Camera -maxdepth 1 -mtime -1 -type f -exec ls -l {} \;    供先测试一下

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

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 "{}" \;