특정파일내용을 지정한 열을 기준으로 내림차순(역순)정렬하기

[root@host3 command]# sort -rk 2 textfile
8       two     eight

2       three   seven

5       ten     zero

9       six     four

3       seven   three

4       one     nine

1       nine    one

6       four    six

0       five    five

7       eight   two
[root@host3 command]#

[root@host3 command]# sort -k 3 textfile
8       two     eight
0       five    five
9       six     four
4       one     nine
1       nine    one
2       three   seven
6       four    six
3       seven   three
7       eight   two
5       ten     zero
[root@host3 command]#

[root@host3 command]# sort -rk 3 textfile
5       ten     zero
7       eight   two
3       seven   three
6       four    six
2       three   seven
1       nine    one
4       one     nine
9       six     four
0       five    five
8       two     eight
[root@host3 command]#