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@haskaalo
haskaalo / tarcheatsheet.md
Last active January 29, 2026 04:31
Tar usage / Tar Cheat Sheet

Tar Usage / Cheat Sheet

Compress a file or directory

e.g: tar -czvf name-of-archive.tar.gz /path/to/directory-or-file

  • -c: Create an archive.
  • -z: Compress the archive with gzip.
  • -v: makes tar talk a lot. Verbose output shows you all the files being archived and much.
  • -f: Allows you to specify the filename of the archive.
@juanplopes
juanplopes / rsa.py
Last active July 14, 2023 17:35
RSA by example
from random import randint
#----Step 1
# First, choose two random primes.
# In real world, they should be really big primes (hundreds of digits).
p, q = 41, 47
#----Step 2
# From them we have n=p*q and phi(n)=(p-1)*(q-1).
@rogerallen
rogerallen / us_state_abbrev.py
Last active April 23, 2026 16:24
A Python Dictionary to translate US States to Two letter codes
# United States of America Python Dictionary to translate States,
# Districts & Territories to Two-Letter codes and vice versa.
#
# Canonical URL: https://gist.github.com/rogerallen/1583593
#
# Dedicated to the public domain. To the extent possible under law,
# Roger Allen has waived all copyright and related or neighboring
# rights to this code. Data originally from Wikipedia at the url:
# https://en.wikipedia.org/wiki/ISO_3166-2:US
#