如何在不解压缩和重新压缩的情况下重命名 zip 存档中的文件？

Question

I need to rename all the files on a zip file from AAAAA-filename.txt to BBBBB-filename.txt , and I want to know if I can automate this task without having to extract all files, rename and then zip again. Unzipping one at a time, renaming and zipping again is acceptable.

What I have now is:

for file in *.zip
do
    unzip $file
    rename_txt_files.sh
    zip *.txt $file
done;

But I don't know if there is a fancier version of this where I don't have to use all that extra disk space.

Answer 1

plan

• find offsets of filenames with strings
• use dd to overwrite new names ( note will only work with same filename lengths ). otherwise would also have to find and overwrite the filenamelength field..

backup your zipfile before trying this

zip_rename.sh

#!/bin/bash

strings -t d test.zip | \
grep '^\s\+[[:digit:]]\+\sAAAAA-\w\+\.txt' | \
sed 's/^\s\+\([[:digit:]]\+\)\s\(AAAAA\)\(-\w\+\.txt\).*$/\1 \2\3 BBBBB\3/g' | \
while read -a line; do
  line_nbr=${line[0]};
  fname=${line[1]};
  new_name=${line[2]};
  len=${#fname};
#  printf "line: "$line_nbr"\nfile: "$fname"\nnew_name: "$new_name"\nlen: "$len"\n";
  dd if=<(printf $new_name"\n") of=test.zip bs=1 seek=$line_nbr count=$len conv=notrunc  
done;

output

$ ls
AAAAA-apple.txt  AAAAA-orange.txt  zip_rename.sh
$ zip test.zip AAAAA-apple.txt AAAAA-orange.txt 
  adding: AAAAA-apple.txt (stored 0%)
  adding: AAAAA-orange.txt (stored 0%)
$ ls
AAAAA-apple.txt  AAAAA-orange.txt  test.zip  zip_rename.sh
$ ./zip_rename.sh 
15+0 records in
15+0 records out
15 bytes (15 B) copied, 0.000107971 s, 139 kB/s
16+0 records in
16+0 records out
16 bytes (16 B) copied, 0.000109581 s, 146 kB/s
15+0 records in
15+0 records out
15 bytes (15 B) copied, 0.000150529 s, 99.6 kB/s
16+0 records in
16+0 records out
16 bytes (16 B) copied, 0.000101685 s, 157 kB/s
$ unzip test.zip 
Archive:  test.zip
 extracting: BBBBB-apple.txt         
 extracting: BBBBB-orange.txt        
$ ls
AAAAA-apple.txt   BBBBB-apple.txt   test.zip
AAAAA-orange.txt  BBBBB-orange.txt  zip_rename.sh
$ diff -qs AAAAA-apple.txt BBBBB-apple.txt 
Files AAAAA-apple.txt and BBBBB-apple.txt are identical
$ diff -qs AAAAA-orange.txt BBBBB-orange.txt 
Files AAAAA-orange.txt and BBBBB-orange.txt are identical

Answer 2

We used python to

1. Extract xyz.zip file to xyz_renamed/ folder
2. Rename the desired files (we are only renaming jpeg and png images) in renameFile function (we are changing names to lower)
3. Package the renamed contents again in xyz_renamed.zip
4. Delete the xyz_renamed/ folder and xyz.zip file
5. Renaming xyz_renamed.zip to xyz.zip

import os
from zipfile import ZipFile
import shutil

# rename the individual file and return the absolute path of the renamed file
def renameFile(root, fileName):
    toks = fileName.split('.')
    newName = toks[0].lower()+'.'+toks[1]
    renamedPath =  os.path.join(root,newName)
    os.rename(os.path.join(root,fileName),renamedPath)
    return renamedPath

def renameFilesInZip(filename):
    # Create <filename_without_extension>_renamed folder to extract contents into
    head, tail = os.path.split(filename)
    newFolder = tail.split('.')[0]
    newFolder += '_renamed'
    newpath = os.path.join(head, newFolder)
    if(not os.path.exists(newpath)):
        os.mkdir(newpath)

    # extracting contents into newly created folder
    print("Extracting files\n")
    try:
        with ZipFile(filename, 'r', allowZip64=True) as zip_ref:
            zip_ref.extractall(newpath)
        zip_ref.close()
    except ResponseError as err:
        print(err)
        return -1

    # track the files that need to be repackaged in the zip with renamed files
    filesToPackage = []

    for r, d, f in os.walk(newpath):
        for item in f:
            # filter the file types that need to be renamed
            if item.lower().endswith(('.jpg', '.png')):
                # renaming file
                renamedPath = renameFile(r, item)
                filesToPackage.append(renamedPath)
            else:
                filesToPackage.append(os.path.join(r,item))


    # creating new zip file
    print("Writing renamed file\n")

    zipObj = ZipFile(os.path.join(head, newFolder)+'.zip', 'w', allowZip64 = True)
    for file in filesToPackage:
        zipObj.write(file, os.path.relpath(file, newpath))
    zipObj.close()

    # removing extracted contents and origianl zip file
    print('Cleaning up \n')
    shutil.rmtree(newpath)
    os.remove(filename)

    # renaming zipfile with renamed contents to original zipfile name
    os.rename(os.path.join(head, newFolder)+'.zip', filename)

Use the following code to invoke the renaming function for multiple zip files

if __name__ == '__main__':

    # zipfiles with contents to be renamed
    zipFiles = ['/usr/app/data/mydata.zip', '/usr/app/data/mydata2.zip']
    
    # do the renaming for all files one by one
    for _zip in zipFiles:
        renameFilesInZip(_zip)