Methods such as SED and awk to make rows

Before I sorted out some of the grep, sed, and awk articles, of course, it was a very basic thing, and the problems I encountered would be sorted together, and then analyzed, so the impression would be deeper.

[[email protected] ~]# cat file

1

2

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4

5

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8

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11

Turn the column first and write the 5 methods:

1.xargs implementations

[email protected] ~]# cat file |xargs

1 2 3 4 5 6 7 8 9 10 11

2.tr implementation, echo wrap required

[email protected] ~]# cat file |tr "\ n" ""; Echo

1 2 3 4 5 6 7 8 9 10 11

3.awk implementation. It is mainly the dynamic setting of Ors, and the ingenious use of "%" redundancy.

[[email protected] ~]# awk ' {if (nr%11) {ors= ""}else{ors= "\ n"};p rint;} ' file

1 2 3 4 5 6 7 8 9 10 11

[Email protected] ~]# awk ' ors=nr%11? ":" \ n "{print} ' file

1 2 3 4 5 6 7 8 9 10 11

4.perl implementations

[email protected] ~]# cat file |perl-pe ' s/\n//'; echo

1 2 3 4 5 6 7 8 9 10 11

5.sed is implemented with N, a few lines will write a few n, here is 10 n

[email protected] ~]# cat file |sed ' N; N N N N N N N N n;s/\n//g '

1 2 3 4 5 6 7 8 9 10 11

This article is from "Kaka West" blog, please be sure to keep this source http://whnba.blog.51cto.com/1215711/1686121

Methods such as SED and awk to make rows