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Vladislav Grubov ochaton

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@Mons
Mons / change-tarantool-backup-uuid.pl
Last active April 20, 2023 17:12
Script for changing stored UUID of Tarantool backup files (.snap, .xlog, .vy*)
#!/usr/bin/env perl
use 5.010;
use strict;
use File::Find;
use Getopt::Long;
sub usage {
return <<EOF
===============================================================
@jaydenseric
jaydenseric / ffmpeg-web-video-guide.md
Last active December 17, 2025 16:48
A quick guide to using FFmpeg to create cross-device web videos.

Video conversion with FFmpeg

Install

On mac:

  1. Download the latest release.
  2. Extract the binary and place it in /usr/local/bin.

Command basics

@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active February 5, 2026 12:50
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'