meeDamian

#!/bin/bash

RAWTX=$(bitcoin-cli createrawtransaction '[{"txid": "c09fc1b73260c5b5d0fd270de49c6c56d8fe6dc169cdfda75273c506bd1cb695", "vout": 0}]' '[{"tb1qncs4ju7gqu4hsc29ccyzvzk0dkste5xs03aaq7": 0.00000001}]' 0 true)

SIGNEDTX=$(bitcoin-cli signrawtransactionwithkey "${RAWTX}" '["'$(bitcoin-cli dumpprivkey tb1q9vugfwpwzac9wkzrhcq0zxfkszgy60ydsghp0f)'"]' | jq -r '.hex')

bitcoin-cli decoderawtransaction ${SIGNEDTX} | jq '. | del(.vout) | del(.vin)'
{
  "txid": "230de7441de94670a64dfddd141aacb117b0cb2a542451dfb4efad4ea533b6ab",
  "hash": "a1a0168b7382bb29c503868105c07b6e8c5db21f6e96d76900f24794b9102c46",

meeDamian

#!/bin/bash
# First, install ncat: http://nmap.org/ncat/
# Usually comes with the 'nmap' package on distributions.

ncat -k -v -l -p 5555 -c 'ipfs refs local | gzip'

# To retrieve on the client machine:
# nc 127.0.0.1 5555 | gunzip | ipfs pin add -r

meeDamian

#!/usr/bin/env bash

trap "exit" INT


HOSTS=( ln@pi-hdd  lnd@pi-other )


echo -e "\nCreating backups for ${#HOSTS[*]} hosts…"

meeDamian

/tmp|⇒ /usr/bin/time -l 7z a -t7z -m0=lzma -mx=9 -mfb=64 -md=32m -ms=on bitcoin-blocks.7z ~/Library/Application\ Support/Bitcoi
n/blocks

      412.70 real       379.01 user         7.50 sys
 395800576  maximum resident set size
         0  average shared memory size
         0  average unshared data size
         0  average unshared stack size
     97211  page reclaims
        35  page faults

meeDamian

If you ever wondered what info about you, Samourai Wallet sends back home, here is how you can see it.

Combine domain with path, to get sth like:

https://api.samouraiwallet.com/v2/multiaddr?active=

meeDamian

#!/bin/bash

BLOCKCHAIN_INFO_URL="https://api.blockchain.info/charts/blocks-size?timespan=2years&format=csv"
VERy_BITCOIN="https://charts.bitcoin.com/bch/api/chart/blockchain-size"

SPLIT_DATE="2017-08-01"

# I use date for two days ago, as depending on your TZ, bc.info might not have the data yet
RECENT_DATE="$(date -v-2d +%F)"

meeDamian

[[1315872000, 5.800000000000, 6.000000000000, 5.650000000000, 5.970000000000, 58.371382380000, 346.097389394400, 5.929230648356], [1315958400, 5.580000000000, 5.720000000000, 5.520000000000, 5.530000000000, 61.145983620000, 341.854813234800, 5.590797514344], [1316044800, 5.120000000000, 5.240000000000, 5.000000000000, 5.130000000000, 80.140795200000, 408.259002164000, 5.094271914137], [1316131200, 4.820000000000, 4.870000000000, 4.800000000000, 4.850000000000, 39.914006800000, 193.763146600000, 4.854515047084], [1316217600, 4.870000000000, 4.870000000000, 4.870000000000, 4.870000000000, 0.300000000000, 1.461000000000, 4.870000000000], [1316304000, 4.870000000000, 4.920000000000, 4.810000000000, 4.920000000000, 119.812800000000, 579.843102741000, 4.839575594102], [1316390400, 4.900000000000, 4.900000000000, 4.900000000000, 4.900000000000, 20.000000000000, 98.000000000000, 4.900000000000], [1316476800, 4.920000000000, 5.660000000000, 4.920000000000, 5.660000000000, 89.280710680000, 481.049262911600, 5.388053693

meeDamian

#!/bin/bash

# [pre-0.17] calculate time differences between all block log entries in `debug.log`
zgrep -ah 'UpdateTip' ~/.bitcoin/debug.lo* | awk '{print $1 " " $2}' | while read -r line; do date -d $line +%s; done | awk 'NR>1{print $1-p} {p=$1}' | while read -r diff; do printf '%dh %dm %ds\n' $((${diff}/3600)) $((${diff}%3600/60)) $((${diff}%60)); done

# [0.17+] same as above
zgrep -ah 'UpdateTip' ~/.bitcoin/debug.lo* | awk '{print $1}' | while read -r line; do date -d $line +%s; done | awk 'NR>1{print $1-p} {p=$1}' | while read -r diff; do printf '%dh %dm %ds\n' $((${diff}/3600)) $((${diff}%3600/60)) $((${diff}%60)); done


# [pre-0.17] get 32 blocks after a longer inactivity persiod (1hr++)

meeDamian

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

meeDamian

+ trap wrap_up TERM INT HUP
+ export DEBIAN_FRONTEND=noninteractive
+ DEBIAN_FRONTEND=noninteractive
+ raspi-config nonint do_change_locale en_US.UTF-8
Generating locales (this might take a while)...
  en_US.UTF-8... done
Generation complete.
+ export LANGUAGE=en_US.UTF-8
+ LANGUAGE=en_US.UTF-8
+ export LANG=en_US.UTF-8