linux 中sed命令如何删除第一列和最后一列

 

001、删除第一列

(base) root@PC1:/home/test# cat test.txt
1       MIR1302-10      1
2       FAM138A 2
3       OR4F5   3
4       RP11-34P13.7    4
5       RP11-34P13.8    5
6       AL627309.1      6
7       RP11-34P13.14   7
8       RP11-34P13.9    8
9       AP006222.2      9
10      RP4-669L17.10   10
(base) root@PC1:/home/test# sed 's/^\S\+[\t ]//' test.txt    ## sed命令删除第一列
MIR1302-10      1
FAM138A 2
OR4F5   3
RP11-34P13.7    4
RP11-34P13.8    5
AL627309.1      6
RP11-34P13.14   7
RP11-34P13.9    8
AP006222.2      9
RP4-669L17.10   10

 

002、删除最后一列

(base) root@PC1:/home/test# cat test.txt
1       MIR1302-10      1
2       FAM138A 2
3       OR4F5   3
4       RP11-34P13.7    4
5       RP11-34P13.8    5
6       AL627309.1      6
7       RP11-34P13.14   7
8       RP11-34P13.9    8
9       AP006222.2      9
10      RP4-669L17.10   10
(base) root@PC1:/home/test# sed 's/[\t ]\+\S\+$//' test.txt     ## sed命令删除最后一列
1       MIR1302-10
2       FAM138A
3       OR4F5
4       RP11-34P13.7
5       RP11-34P13.8
6       AL627309.1
7       RP11-34P13.14
8       RP11-34P13.9
9       AP006222.2
10      RP4-669L17.10