It seems that a program that does mysqldump
for all DBs is often needed, and it seems that it is created each time. However, I have no memory of writing any of them.
Bash
How to use:
$ ./mysqldump-all </path/to/dump/dir>
mysqldump-all
#!/usr/bin/env bash
MYSQL_USER=root
MYSQL_PASS=root
if [ $# -ne 1 ]
then
echo "$(basename $0) </path/to/dump/dir>"
exit 1
fi
dump_dir=$1
if [ ! -d $dump_dir ]
then
echo "$dump_dir is not a directory."
exit 1
fi
databases=$(mysql -u${MYSQL_USER} -p${MYSQL_PASS} -e 'SHOW DATABASES;' --silent)
for database in $databases
do
if [ "$database" != "information_schema" ]
then
echo "Dumping $database..."
filename=$dump_dir/mysql-$database.sql.gz
mysqldump -u${MYSQL_USER} -p${MYSQL_PASS} $database | gzip > $filename
echo $filename
fi
done
Python
How to use
% ./mysqldump-all.py -h
usage: mysqldump-all.py [-h] [-u USERNAME] [-p PASSWORD] [-x PREFIX] outdir
Dump all mysql databases
positional arguments:
outdir directory to make dump files
optional arguments:
-h, --help show this help message and exit
-u USERNAME mysql username
-p PASSWORD mysql password
-x PREFIX file prefix
mysqldump-all.py
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import argparse
import commands
import sys
class MySQLDump:
def __init__(self, options):
self.username = options.username
self.password = options.password
self.outdir = options.outdir
self.prefix = options.prefix
self.ignore_databases = ['information_schema', 'performance_schema', 'mysql', 'test']
def dump(self):
self._check_outdir()
databases = self._get_databases()
for database in databases:
if database not in self.ignore_databases:
self._dump_database(database)
def _check_outdir(self):
if os.path.isdir(self.outdir) == False:
raise Exception("Out directory '%s' not found." % self.outdir)
def _get_databases(self):
command = "mysql --silent %s -e 'SHOW DATABASES'" % self._get_options()
result = commands.getstatusoutput(command)
if result[0] > 0:
raise Exception('Failed to fetch databases: ' + result[1]);
return result[1].split("\n")
def _dump_database(self, database):
print "Dumping database %s..." % database
filename = self.outdir + '/' + self.prefix + database + '.sql.gz'
command = "mysqldump %s %s | gzip > %s" % (self._get_options(), database, filename)
result = commands.getstatusoutput(command)
if result[0] > 0:
raise Exception(result[1])
print filename
def _get_options(self):
options = []
if self.username:
options.append("-u %s" % self.username)
if self.password:
options.append("-p %s" % self.password)
return ' '.join(options)
def main():
parser = argparse.ArgumentParser(description='Dump all mysql databases')
parser.add_argument('-u', type=str, help='mysql username', default='', dest='username')
parser.add_argument('-p', type=str, help='mysql password', default='', dest='password')
parser.add_argument('-x', type=str, help='file prefix', default='mysql-', dest='prefix')
parser.add_argument('outdir', type=str, help='directory to make dump files')
args = parser.parse_args()
try:
mysqldump = MySQLDump(args)
mysqldump.dump()
except Exception, e:
print e
exit(1)
if __name__ == "__main__":
main()