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Accepted
Aha
Asked: 2011-12-28 02:55:10 +0800 CST

How to fetch lines between two strings using shell script?

  • 772

How to fetch lines between two strings using shell script? For example I am having a file called file_text.txt as below.

MEDIUMINT
CREATE ( 
MAXVALUE 
MEDIUMBLOB
MEDIUMINT
MEDIUMTEXT
MIDDLEINT );
MINUTE_SECOND
MINUTE_SECOND
CREATE (
MINUTE_MICROSECOND
MINUTE_SECOND
MOD );
MODIFIES
MEDIUMINT
CREATE (
NATURAL
NOT
NO_WRITE_TO_BINLOG
NULL );
NUMERIC
ON
OPTIMIZE

I want to grep all lines between CREATE and ; from the file. Including the CREATE and ;string.

shell-scripting

2 Answers

  1. Best Answer

    Something like that:

    sed '/^CREATE/,/);$/!d;s/^CREATE (//;s/);$//' file_text.txt

    will output:

    MAXVALUE 
MEDIUMBLOB
MEDIUMINT
MEDIUMTEXT
MIDDLEINT 

MINUTE_MICROSECOND
MINUTE_SECOND
MOD 

NATURAL
NOT
NO_WRITE_TO_BINLOG
NULL

    Or in case you need CREATE ( and ); just do

    sed '/^CREATE/,/);$/!d' file_text.txt

    It will do smth like that:

    CREATE ( 
MAXVALUE 
MEDIUMBLOB
MEDIUMINT
MEDIUMTEXT
MIDDLEINT );
CREATE (
MINUTE_MICROSECOND
MINUTE_SECOND
MOD );
CREATE (
NATURAL
NOT
NO_WRITE_TO_BINLOG
NULL );
    • 4

  2. Try this

     echo "...youriput..." | tr -d "\n" | tr ';' '\n' | grep CREATE | sed "s/.*CREATE\(.*\)/CREATE\1;/"
    • 0