Wednesday, May 31
Let's say you have a MySQL backup made using mysqldump -A, which dumps all the databases on the system into a single file. But you only want to restore one of the databases, which consists of about 300KB in the middle of a 1.7GB SQL dump. And you're not sure if you want today's file or yesterday's or the day before's. How do you find the right one? How do you restore it easily?
import sys bakfile=sys.argv outfile='header.dat' f=open(bakfile,'r') g=open(outfile,'w') while 1: t=f.readline() if t[0:20]=='-- Current Database:': db=t[22:-2] print db g=open(db+'.dat','w') g.write(t)Use: python dbsplit.py <filename>
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