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gform="^202[0-9]{1}PECCB[1-3]{1}[0-9]{2}$"

# all rollno
# does from 
# -2020 onwards
# - cb, cs, ai, ml, cc, it
# - from 100-999

gform="202[0-9]{1}PEC(CB|AI|ML|CC|CS|IT)[1-9]{1}[0-9]{2}$"

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# replace LockedApp.app with the app to unlock
sudo xattr -rd com.apple.quarantine '/Applications/LockedApp.app'

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# Creating
pip freeze > requirements.txt

# Installing
pip install -r requirements.txt

# see eeeasy peeeasy

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# create venv 
py -m venv venv

# activate venv
source venv/bin/activate

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<footer> 
	&copy; Copyright <span id="copyright"></span>, aviiciii
</footer>
<script>document.getElementById('copyright').appendChild(document.createTextNode(new Date().getFullYear()))</script>

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# open in terminal
$ nano ~/.zshrc

# this open a file in nano editor

# add the following line in the editor
alias py=python
or 
alias py=python3

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import re

inpt=input('ID:')
# inpt = '21F3000426'

# writting regex
if re.search(r'^(21|22)(F|DP|DS)([1-3]{1})([0-9]{6})$', inpt):
    print('Valid ID')
else:
    print('Invalid ID')