How do I recusively unzip nested ZIP files?

问题

Okay, given there is a secret file deep inside a nested ZIP file, i.e. a ZIP file inside a zip file inside a zip file, etc...

The ZIP files are named 1.zip, 2.zip, 3.zip, etc...

We don't know how deep the ZIP files are nested but it may be thousands.

What would be the easiest way to loop through all of them up until the last one to read the secret file?

My initial approach would have been to call unzip recursively, but my bash skills are limited. What are your ideas to solve this?

回答1:

Here's my 2 cents.

#!/bin/bash

function extract(){
  unzip $1 -d ${1/.zip/} && eval $2 && cd ${1/.zip/}
  for zip in `find . -maxdepth 1 -iname *.zip`; do
    extract $zip 'rm $1'
  done
}

extract '1.zip'

回答2:

Thanks Cyrus! The master wizard Shawn J. Goff had the perfect script for this:

while [ "`find . -type f -name '*.zip' | wc -l`" -gt 0 ]; do find -type f -name "*.zip" -exec unzip -- '{}' \; -exec rm -- '{}' \;; done

回答3:

Probably not the cleanest way, but that should do the trick:

#!/bin/sh
IDX=1 # ID of your first zip file
while [ 42 ]
do
    unzip $IDX.zip # Extract
    if [[ $? != 0 ]]
    then
        break # Quit if unzip failed (no more files)
    fi
    if [ $IDX -ne 1 ]
    then
        rm $IDX.zip # Remove zip to leave your directory clean
    fi
    (( IDX ++ )) # Next file
done

回答4:

Checkout this java based utility nzip for nested zips.

Extracting and compressing nested zips can be done easily using following commands:

java -jar nzip.jar -c list -s readme.zip 

java -jar nzip.jar -c extract -s "C:\project\readme.zip" -t readme 

java -jar nzip.jar -c compress -s readme -t "C:\project\readme.zip" 

PS. I am the author and will be happy to fix any bugs quickly.

来源：https://stackoverflow.com/questions/34208857/how-do-i-recusively-unzip-nested-zip-files

标签

Linux

bash

shell

zip

unzip