Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
2.6k views
in Technique[技术] by (71.8m points)

how to tell sed "dot match new line"

I can't figure how to tell sed dot match new line:

echo -e "one two three" | sed 's/one.*two/one/m'

I expect to get:

one
three

instead I get original:

one
two
three

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 Answer

0 votes
by (71.8m points)

sed is line-based tool. I don't think these is an option.
You can use h/H(hold), g/G(get).

$ echo -e 'one
two
three' | sed -n '1h;1!H;${g;s/one.*two/one/p}'
one
three

Maybe you should try vim

:%s/one\_.*two/one/g

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 OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...