column_2_row.md

test file 测试文件

[jialesun:~/jiale/]$ cat test.txt                     
1
2
3
4
5
6

change column num to one row 修改列变成一行

[jialesun:~/jiale/]$ cat test.txt|tr '\n' '|'  
1|2|3|4|5|6|

another method 另外一个方法

[jialesun:~/jiale/]$ cat test.txt|xargs|sed 's/ /|/g'  
1|2|3|4|5|6