[Hack] picoCTF - Mod 26

This is a challenge from the picoCTF picoGym, the challenge description follows:

"Cryptography can be easy, do you know what ROT13 is? 
cvpbPGS{arkg_gvzr_V'yy_gel_2_ebhaqf_bs_ebg13_uJdSftmh}"

This is pretty straightforward, we can use a website to decrypt the ROT13 encrypted message.

But in this case, I used a bash script to do this for me. Here's the script:

# Tring to find a flag using ROT13
# Where $1 is cvpbPGS{arkg_gvzr_V'yy_gel_2_ebhaqf_bs_ebg13_uJdSftmh}

echo "== ROT13 =="
echo ""
output=$(echo "$1" | tr 'N-ZA-Mn-za-m' …

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