some personal shell scripts for personal use

• d2m
• is_model
• rn1
• rn2
• rn3
• rn4

• d2m

  set files' createdate the same as modifydate (for macOS only)
  

• $is_model -h

  is_model - check photos under a directory if is produced by MODEL
  ++ the query is based on exiftool ++
   
  usage: is_model [options] MODEL [NDIR [DIRECTORY]]
   
  options:
  -h, --help                show brief help
  -g, --tag                 specify TAG instead of 'Model'
  -q                        query only; otherwise move to NDIR (default same as 
                            TAG; make it if not exist) under DIRECTORY (default 
                            CURRENT)
  

• $rn1 -h

  rn1 - rename files sequentially under a directory
  ++ rn4 may required for no-simulation mode! ++
   
  usage: rn1 [options] [DIRECTORY]
   
  options:
  -h, --help                show brief help
  -x, --ext=EXT             only applied for files with this extention; default all
  -p, --prefix=PREFIX       PREFIX_XXXX.EXT; default name of targit directory
  -i, --ini=INI             basement for increament; default 0
  -s                        simulation mode (not executed)
  -v                        verbose mode
  

• $rn2 -h

  rn2 - replace STR0 in filenames by STR1 under a directory
   
  usage: rn2 [options] STR0 [STR1]
   
  options:
  -h, --help                show brief help
  -d                        specify a path; otherwise applied to current directory!
  -s                        simulation mode (not executed)
  -v                        verbose mode
  

• $rn3 -h

  rn3 - change extension case in filename(s) under a directory
   
  usage: rn3 [options] [DIRECTORY]
   
  options:
  -h, --help                show brief help
  -x, --ext=EXT             only applied for files with this extention
  -u                        to uppercase; otherwise to lowercase
  -s                        simulation mode (not executed)
  -v                        verbose mode
  

• $rn4 -h

  rn4 - add .x before extension in filename(s)
   
  usage: rn4 [options] [DIRECTORY]
   
  options:
  -h, --help                show brief help
  -x, --ext=EXT             only applied for files with this extention
  -s                        simulation mode (not executed)
  -v                        verbose mode