# Misc: zipzipzipzip

## Task:
```
Author: botanbell

unzip me pls
```

## Solution:

Attached to the challenge is a password.txt and a file called zip-25000.zip.
The zip-25000.zip file is password-encrypted, so you must unlock it with the password contained in password.txt
Upon unzipping zip-25000.zip, you will soon figure out that inside the unzipped folder, there is a file called password.txt and zip-24999.zip.
This usually means that you'll have to do this process 24999 more times, which, if you do it manually, and assuming you take 5 seconds to unzip one zip file, it would take ~35 hours of nonstop unzipping.

That's crazy. No one wants to do that. (unless you're crazy)

So obviously you want to make a script to automate it. Some used python to solve it, but I used bash (only because it's simpler)

My thought process was to answer all of the following questions:
* How do I automate it?
* How do I loop it?
* Is there a way to make this process more efficient?

From the questions above, I knew I had to implement these:
* Read password, use it on zip
* Unzip
* Loop 25000 times
* Delete the original file (this idea came up later on because I realized it would clog up my storage)

So I made this bash script to help me

```bash
#!/bin/bash
j=0
for i in {1..25000}
do
unzip -P $(strings password.txt) -o $(ls *.zip)
rm zip-$((25000-$j)).zip
j=$((j+1))
done
```

Unzipping all of them gives a flag.txt, which reads:

## Flag:

```
TCP1P{1_TH1NK_U_G00D_4T_SCR1PT1N9_botanbell_1s_h3r3^_^}
```

## Notes:

I believe this code isn't fully optimized, as it took me ~10 minutes to fully unzip all of them.
(i'm still learning)