Extracting a line section of mysql backup using sed
- by carpii
I occasionally need to extract a single record from a mysqlbackup
To do this, I first extract the single table I want from the backup...
sed -n -e '/CREATE TABLE.*usertext/,/CREATE TABLE/p' 20120930_backup.sql > table.sql
In table.sql, the records are batched using extended inserts (with maybe 100 records per insert before it creates a new line starting with INSERT INTO), so they look like...
INSERT INTO usertext VALUES (1, field2 etc), (2, field2 etc),
INSERT INTO usertext VALUES (101, field2 etc), (102, field2 etc), ...
Im trying to extract record 239560 from this, using...
sed -n -e '/(239560.*/,/)/p' table.sql > record.sql
Ie.. start streaming when it finds 239560, and stop when it hits the closing bracket
But this isnt working as I hoped, it just results in the full insert batch being output.
Please can someone give me some pointers as to where Im going wrong?
Would I be better off using awk for extracting segments of lines, and use sed for extracting lines within a file?
