Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
535 views
in Technique[技术] by (71.8m points)

ignorecase in AWK

The following command is working as expected.

# some command | awk '/(<^create>|<^alter>|<^drop>)/,/;/' 
create table todel1 (id int) max_rows=2
/*!*/;
alter table todel1 engine=InnoDB
/*!*/;
create database common
/*!*/;
create database rules
/*!*/;

But it matches only the lower case "create", "alter" etc. I want to use IGNORECASE switch in the awk statement so that it will return all instances of the search term.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Add IGNORECASE = 1; to the beginning of your awk command like so:

bash-3.2$ echo "Create" | awk '/^create/;'
bash-3.2$ echo "Create" | awk 'IGNORECASE = 1;/^create/;'
Create

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...