Discover and read the best of Twitter Threads about #decimal
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Monday: 50th anniversary of UK coins #Decimalday
Biggest revolution in UK currency for centuries
Dad designed the reverses
Mum was model for 50p Britannia
& I (as toddler) trashed key designs
Dad had to win not 1 but 2 competitions to become #decimal designer: a thread
Biggest revolution in UK currency for centuries
Dad designed the reverses
Mum was model for 50p Britannia
& I (as toddler) trashed key designs
Dad had to win not 1 but 2 competitions to become #decimal designer: a thread
1st secret competition run by @RoyalMintUK
The UK’s best artists & designers invited to compete.
Dad won.
His designs turned into sample coins, see below.
Then disaster. He got a call to go into the Mint….2/16
The UK’s best artists & designers invited to compete.
Dad won.
His designs turned into sample coins, see below.
Then disaster. He got a call to go into the Mint….2/16
Deputy Master poured him a huge gin & said Govt going public with decimal plans but would be launching a 2nd competition, open to all
So Dad hadn’t won after all. He was devastated but….3/16
So Dad hadn’t won after all. He was devastated but….3/16
#linux #bash #obfuscation using shell parameter expansion:
alphabet=abcdefghijklmnopqrstuvwxyz
${alphabet:2:1}at really
${alphabet: -24:-23}at really
${alphabet: -24:1}at really
${alphabet:2:-23}at really
gnu.org/software/bash/…
similar #bat #windows (ss64.com/nt/syntax-subs…)
alphabet=abcdefghijklmnopqrstuvwxyz
${alphabet:2:1}at really
${alphabet: -24:-23}at really
${alphabet: -24:1}at really
${alphabet:2:-23}at really
gnu.org/software/bash/…
similar #bat #windows (ss64.com/nt/syntax-subs…)
The goal is to obfuscate the following command:
cat really
in which, really is a file.
cat really
in which, really is a file.
Using arithmetic (add, sub, mul, div, mod, and pow) for calculating index or lenght
${alphabet: 2:(-20-3)}at really
${alphabet: 2:(-20-3)}at really
