Tags: sha2017ctf
Rating:
```
# cat Rotation.sh
#!/bin/bash
text="Ykksy eua ckxk ghrk zu mkz znk zkdz hgiq. Znk lrgm oy lrgm{30j3g1gg0ijg9l08ijlg52668hi6854g}"
alpha="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
rot=46
encode=`sed "y/${alpha}/${alpha:$rot}${alpha::$rot}/" <<< $text`
echo $encode
```
```
# ./Rotation.sh
Seems YoU Were able to get the teXt back. The flag is flag{30d3a1aa0cda9f08cdfa52668bc6854a}
```