如果，Automator / Applescript重命名文件

Question

我有一大堆由我的艺术家命名的图像。 我希望通过使用Automator避免给他更多的工作，但我是新手。 现在他们按照what001a和what002a命名，但应该是what001a和what001b。 所以基本上奇数编号为A，偶数编号为B.所以我需要一个脚本，将偶数编号改为B图像，并将它们重新编号为正确的顺序编号。 我该怎么写这个剧本？

Answer 1

嵌入在AppleScript中的小型Ruby脚本提供了一个非常舒适的解决方案，允许您选择要在Finder中重命名的文件并显示信息成功或错误消息。

该算法重命名文件如下：

number = first 3 digits in filename                # e.g. "006"
letter = the letter following those digits         # e.g. "a"
if number is even, change letter to its successor  # e.g. "b"
number = (number + 1)/2                            # 5 or 6 => 3
replace number and letter in filename

这是：

-- ask for files
set filesToRename to choose file with prompt "Select the files to rename" with multiple selections allowed

-- prepare ruby command
set ruby_script to "ruby -e \"s=ARGV[0]; m=s.match(/(\\d{3})(\\w)/); n=m[1].to_i; a=m[2]; a.succ! if n.even?; r=sprintf('%03d',(n+1)/2)+a; puts s.sub(/\\d{3}\\w/,r);\" "


tell application "Finder"

    -- process files, record errors
    set counter to 0
    set errors to {}
    repeat with f in filesToRename
        try
            do shell script ruby_script & (f's name as text)
            set f's name to result
            set counter to counter + 1
        on error
            copy (f's name as text) to the end of errors
        end try
    end repeat

    -- display report
    set msg to (counter as text) & " files renamed successfully!\n"
    if errors is not {} then
        set AppleScript's text item delimiters to "\n"
        set msg to msg & "The following files could NOT be renamed:\n" & (errors as text)
        set AppleScript's text item delimiters to ""
    end if
    display dialog msg
end tell

请注意，当文件名包含空格会失败。

Answer 2

我的一个朋友写了一个Python脚本来做我需要的。 我想在这里发布它作为任何人在寻找帮助时遇到类似问题的答案。 它是在Python中，所以如果有人想将它转换为AppleScript，那些可能需要它的人就可以了。

import os
import re
import shutil

def toInt(str):
  try:
    return int(str)
  except:
    return 0

filePath = "./"
extension = "png"

dirList = os.listdir(filePath)

regx = re.compile("[0-9]+a")

for filename in dirList:
  ext = filename[-len(extension):]
  if(ext != extension): continue
  rslts = regx.search(filename)
  if(rslts == None): continue
  pieces = regx.split(filename)
  if(len(pieces) < 2): pieces.append("")
  filenumber = toInt(rslts.group(0).rstrip("a"))
  newFileNum = (filenumber + 1) / 2
  fileChar = "b"
  if(filenumber % 2): fileChar = "a"
  newFileName = "%s%03d%s%s" % (pieces[0], newFileNum, fileChar, pieces[1])
  shutil.move("%s%s" % (filePath, filename), "%s%s" % (filePath, newFileName))