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Backup all MySQL Databases to individual files

Terminal - Backup all MySQL Databases to individual files
mysql -e 'show databases' | sed -n '2,$p' | xargs -I DB 'mysqldump DB > DB.sql'
2009-09-25 08:43:06
User: mislav
Functions: sed xargs
Backup all MySQL Databases to individual files

No need to loop when we have `xargs`. The sed command filters out the first line of `show databases` output, which is always "Database".


There are 2 alternatives - vote for the best!

Terminal - Alternatives
for I in $(mysql -e 'show databases' -s --skip-column-names); do mysqldump $I | gzip > "$I.sql.gz"; done
for db in $(mysql -e 'show databases' -s --skip-column-names); do mysqldump $db | gzip > "/backups/mysqldump-$(hostname)-$db-$(date +%Y-%m-%d-%H.%M.%S).gz"; done
for I in `echo "show databases;" | mysql | grep -v Database`; do mysqldump $I > "$I.sql"; done
2009-02-16 16:41:05
User: ruedu
Functions: grep

Backups all MySQL databases to individual files. Can be put into a script that grabs current date so you have per day backups.

mysql -e 'show databases' -s --skip-column-names | egrep -v "^(test|mysql|performance_schema|information_schema)$" | parallel --gnu "mysqldump --routines {} > {}_daily.sql"
2013-07-24 15:37:58
User: intel352
Functions: egrep

Backs up all databases, excluding test, mysql, performance_schema, information_schema.

Requires parallel to work, install parallel on Ubuntu by running: sudo aptitude install parallel

while read; do mysqldump $REPLY | gzip > "/backup/mysql/$REPLY.sql.gz"; done < <( mysql -e 'show databases' -s --skip-column-names )

Know a better way?

If you can do better, submit your command here.

What others think

Hmmm... This does seem to work for me... (redhat es5.2)

mysql -e 'show databases' | sed -n '2,$p' | xargs -I DB 'mysqldump DB > DB.sql'

I found this on http://stackoverflow.com/questions/1375905/putting-the-data-passed-to-xargs-twice-in-one-line

mysql -u root -pPASSWORD -B -e 'show databases' | sed -e '$!N; s/Database\n//' | xargs -L1 -I db mysqldump -u root -pPASSWORD -r db.backup.sql db; gzip *.sql

But liked the "sed -n '2,$p' ", in the previous example, so I tried it like this... and it works like a champ!!

mysql -e 'show databases' | sed -n '2,$p' | xargs -L1 -I db mysqldump -r db.backup.sql db



Comment by tekvax 333 weeks and 1 day ago

oops... that should have said "This doesn't seem to work for me..."

...tried this...and it works like a champ...

darn typo's ;>p


Comment by tekvax 333 weeks and 1 day ago

Right syntax:

mysql -e 'show databases'|sed 1d|xargs -I DB mysqldump DB -r DB.sql

Comment by rodolfoap 324 weeks and 3 days ago

I used that last command by rodolfoap, but had to modify it to my setup, might be helpful:

mysql -p -e 'show databases'|sed 1d|xargs -I DB mysqldump -p DB -r DB.sql Only way I could get it to work was with those modifications...ymmv.
Comment by thagrasshoppa 228 weeks and 3 days ago

Your point of view

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