Quote from: pbies on December 31, 2021, 09:27:24 PM

This grep regex would be very useful later if you don't mind sharing it.

This is the most complete list I've seen so far:

Quote from: naufragus on August 23, 2020, 10:14:58 PM

Quote from: LoyceV on August 18, 2020, 09:43:57 AM

I actually can Cheesy

I found this regexp on Stackoverflow:

Code:

egrep --regexp="^[13][a-km-zA-HJ-NP-Z1-9]{25,34}$" filename

With some slight changes it stops matching parts of Eth-addresses:

Code:

egrep -w --regexp="[13][a-km-zA-HJ-NP-Z1-9]{25,34}" *

I have compiled these from various sources and use them to automatically set my blockchain explorer options based on user input, and also keep them at my .zshrc :

Code:

#cryptocurrency greps

#btc1 and btc2 combined
alias btcgrep="grep -Ee '\b[13][a-km-zA-HJ-NP-Z1-9]{25,34}\b' -e '\bbc(0([ac-hj-np-z02-9]{39}|[ac-hj-np-z02-9]{59})|1[ac-hj-np-z02-9]{8,87})\b'"

#legacy addresses only
alias btcgrep1="grep -E '\b[13][a-km-zA-HJ-NP-Z1-9]{25,34}\b'"
#http://mokagio.github.io/tech-journal/2014/11/21/regex-bitcoin.html

#bech32 v1 and v0 addresses
alias btcgrep2="grep -E '\bbc(0([ac-hj-np-z02-9]{39}|[ac-hj-np-z02-9]{59})|1[ac-hj-np-z02-9]{8,87})\b'"
#https://stackoverflow.com/questions/21683680/regex-to-match-bitcoin-addresses

#bech32 addresses only
alias btcgrep3="grep -E '\bbc1[ac-hj-np-zAC-HJ-NP-Z02-9]{11,71}\b'"

#both legacy and bech32
alias btcgrep4="grep -E '\b([13][a-km-zA-HJ-NP-Z1-9]{25,34}|bc1[ac-hj-np-zAC-HJ-NP-Z02-9]{11,71})\b'"
#http://mokagio.github.io/tech-journal/2014/11/21/regex-bitcoin.html

#private keys
alias btcgrep5="grep -E '\b[5KL][1-9A-HJ-NP-Za-km-z]{50,51}\b'"
#word boundary: '\b'
#https://bitcoin.stackexchange.com/questions/56737/how-can-i-find-a-bitcoin-private-key-that-i-saved-in-a-text-file

#transaction hashes
alias btcgrep6="grep -E '\b[a-fA-F0-9]{64}\b'"
#https://stackoverflow.com/questions/46255833/bitcoin-block-and-transaction-regex
#https://bitcoin.stackexchange.com/questions/70261/recognize-bitcoin-address-from-block-hash-and-transaction-hash

#block hashes
alias btcgrep7="grep -E '\b[0]{8}[a-fA-F0-9]{56}\b'"
#https://stackoverflow.com/questions/46255833/bitcoin-block-and-transaction-regex

Flag -w is 'word bondary' and can also be set within the regex with '\b' at the ends.

I haven't tested all of them.

Quote from: pbies on December 31, 2021, 09:27:24 PM

As I understand I could make one file with addresses that have balance, second file with private keys and then compare these files.

I would get 2 lists of addresses: one with all funded addresses, and one list with the addresses you want to compare. If you find a match, you search your list for the private key for that address.
I'd start with this:

Quote from: LoyceV on June 11, 2020, 03:30:34 PM

On Linux, use this to find matching addresses (after extrating the compressed .gz file of course):

Code:

comm -12 Bitcoin_addresses_LATEST.txt <(cat mylist.txt | sort | uniq)

Bitcoin_addresses_LATEST.txt: the extracted latest version downloaded from addresses.loyce.club.
mylist.txt: your own list of addresses, one address per line.

This takes only seconds to check millions of addresses. If your text file has Microsoft formatting, you may need to use this instead:

Code:

comm -12 Bitcoin_addresses_LATEST.txt <(cat mylist.txt | fromdos | sort | uniq)