how to use grep/sed to remove newlines? (转载) - 未名空间MITBBS历史存档

国际科技财经博客移民网络热点娱乐民生时事公众号

Redian新闻

>未名空间

>Java - 爪哇娇娃

how to use grep/sed to remove newlines? (转载)

how to use grep/sed to remove newlines? (转载)# Java - 爪哇娇娃

A*a2008-10-18 07:10

1 楼

【以下文字转载自 Linux 讨论区】
发信人: Ataraxia (静), 信区: Linux
标题: how to use grep/sed to remove newlines?
发信站: BBS 未名空间站 (Sat Oct 18 10:48:52 2008)
i am trying grep some text from a file then return some words:
grep "^>start" textfile.txt
but it always returns results one each line:
A
B
C
I want to have it as: A B C ..., so I tried to use sed:
grep "^>start" textfile.txt | sed -e 's/\n//'
it doesn't work, anyone knows how to solve this?
Thanks.

b*y2008-10-18 07:10

2 楼

use java to write a simple program to do that ;-)
BufferedReader to read in file line by line,
BufferedWriter to spool/write file out line by line to a new file.
Problem solved...

c*t2008-10-18 07:10

3 楼

echo `grep ">start" textfile.txt`

【在 A******a 的大作中提到】

: 【以下文字转载自 Linux 讨论区】
: 发信人: Ataraxia (静), 信区: Linux
: 标题: how to use grep/sed to remove newlines?
: 发信站: BBS 未名空间站 (Sat Oct 18 10:48:52 2008)
: i am trying grep some text from a file then return some words:
: grep "^>start" textfile.txt
: but it always returns results one each line:
: A
: B
: C