Recover your MySQL password

autor: admin | Čvc 31, 2020 | Uncategorized

What if you’ve forgotten your MySQL root user password? This could be quite the predicament … had the developers not thought of that eventuality. In order to recover the password, you simply have to follow these steps:

1. Stop the MySQL server process with the command sudo service mysql stop
2. sudo mkdir /var/run/mysqld
3. sudo chown mysql:mysql /var/run/mysqld
4. Start the MySQL server with the command sudo mysqld_safe –skip-grant-tables –skip-networking &
5. Connect to the MySQL server as the root user with the command mysql -u root

At this point, you need to issue the following MySQL commands to reset the root password:

mysql> use mysql;
​mysql> update user set authentication_string=password('NEWPASSWORD') where user='root';
​mysql> flush privileges;
​mysql> quit

Pár šikovných příkazů při obnově mysql dumpu

autor: admin | Čvc 30, 2020 | Uncategorized

Toto je důležité pro detekci kodování
mysql --default-character-set=utf8 -h ddd -u zzz -p dbname < dump.sql

Nahrazení řetězce v souboru:
sed -i 's/old-text/new-text/g' input.txt

Rozdělení na soubory:
csplit -k bigfile.txt '/^DELETE/' {*}