[root@localhost~]# cat file
1 2 3
4 5 6
7 8 9
[root@localhost~]# cat file |xargs -n1
[root@localhost~]# xargs -n 1 <file
[root@localhost~]# tr " " "\n" <file
[root@localhost~]# sed ‘s/ /\n/g‘ file
[root@localhost~]# grep -oP ‘\S+‘ file
[root@localhost~]# awk ‘{for(i=1;i<=NF;i++)print $i}‘ file
[root@localhost~]# awk -vOFS="\n" ‘$1=$1‘ file
[root@localhost~]# awk ‘{OFS=RS}NF=NF‘ file
1
2
3
4
5
6
7
8
9本文出自 “卡卡西” 博客，请务必保留此出处http://whnba.blog.51cto.com/1215711/1853501
原文：http://whnba.blog.51cto.com/1215711/1853501