linux shell: paste komutu kullanımı

$ cat testfile
A 1
B 2
C 3
D 4
E 5
F 6
G 7
H 8
I 9
J 10
                                                                                                                                                                                                                                         $ cut -d' ' -f2 testfile
1
2
3
4
5
6
7
8
9
10
                                                                                                                                                                                                                                         $ cut -d' ' -f2 testfile | paste -d, - -
1,2
3,4
5,6
7,8
9,10


Keywords: how to parse and group lines, how to convert lines to columns, how to  convert rows to columns