如何用sed将一行替换成两行

liang_li_yun

如:
将text
替换成  text
            abc

vegetablebird

sed '/text/a  abc' filename

anfield

$more test.txt
text

$sed 's/$/\
>abc/' test.txt
text
abc


$sed '/text/a\
>abc' test.txt
text
abc

[ 本帖最后由 anfield 于 2005-11-11 00:09 编辑 ]

anfield

for further interest in related sed commands :
(from Sed & Awk 2nd Edition)

append [line-address]a
text
The append command places it after the current line.

insert [line-address]i
text
The insert command places the supplied text before the current line in the pattern space.

change [address]c
text
The change command replaces the contents of the pattern space
with the supplied text.


Each of these commands requires a backslash following it to escape the first end-of-line. The text must begin on the next line.

tonyfu

$cat aaa
aaaa
$sed -i 's/aaaa/bbbbncccc/g' aaa
$cat aaa
bbbb
cccc

liang_li_yun

谢谢楼上的各位兄弟了!!!!

rwen2012

sed '/text/s/text/& nabc/' test.txt