sort有bug还是我不会用呀 ？

eachstep

文件1.txt;

1. [kik@tivoli51 1217]$ cat 1.txt
   
2. pbanthia;b
   
3. pba;n
   
4. pba;s
   
5. pban;k
   
6. pbanthia;c
   
7. pbax;n
   

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排序后成

1. 
   
2. [kik@tivoli51 1217]$ sort -t";" -f -i -k1 1.txt
   
3. pba;n
   
4. pban;k
   
5. pbanthia;b
   
6. pbanthia;c
   
7. pba;s
   
8. pbax;n
   

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我理解pba;s 应该在pba;n后面才对

然后调换了一下

1. 
   
2. [kik@tivoli51 1217]$ awk -F";" '{print $2";"$1}' 1.txt  | sort -t";" -k2
   
3. n;pba
   
4. s;pba
   
5. k;pban
   
6. b;pbanthia
   
7. c;pbanthia
   
8. n;pbax
   

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这样就能排对了，

有人知道为什么么？

jason680

回复 1# eachstep

just sort it without issue

$ cat 1.txt
pbanthia;b
pba;n
pba;s
pban;k
pbanthia;c
pbax;n

$ sort 1.txt
pba;n
pba;s
pban;k
pbanthia;b
pbanthia;c
pbax;n

   

yestreenstars

1. [root@localhost ~]# cat i
   
2. pbanthia;b
   
3. pba;n
   
4. pba;s
   
5. pban;k
   
6. pbanthia;c
   
7. pbax;n
   
8. [root@localhost ~]# sort -t';' -fi -k1,1 i
   
9. pba;n
   
10. pba;s
    
11. pban;k
    
12. pbanthia;b
    
13. pbanthia;c
    
14. pbax;n
    
15. [root@localhost ~]#

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yestreenstars

回复 2# jason680
我这里的貌似跟你的不一样~

1. [root@localhost ~]# cat i
   
2. pbanthia;b
   
3. pba;n
   
4. pba;s
   
5. pban;k
   
6. pbanthia;c
   
7. pbax;n
   
8. [root@localhost ~]# sort i
   
9. pba;n
   
10. pban;k
    
11. pbanthia;b
    
12. pbanthia;c
    
13. pba;s
    
14. pbax;n
    
15. [root@localhost ~]#

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eachstep

so weird ,
It doesn't work on both of these 2 versions. any ideas?

1. 
   
2. [kik@tivoli51 1217]$ sort --version
   
3. sort (coreutils) 5.2.1
   
4. [upadmin@us70**** **]$ sort --version
   
5. sort (GNU coreutils) 5.97
   

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yestreenstars

产生这种情况的原因还是那个老问题，之前有人问过了~

       -k, --key=POS1[,POS2]
              start a key at POS1 (origin 1), end it at POS2 (default  end  of
              line)

如果你不指定POS2，sort就默认以POS1到行尾的字符串来排序，这也是为什么直接sort不行的原因。

eachstep

回复 6# yestreenstars

明了， 非常感谢 :wink:


   

jason680

回复 4# yestreenstars


I think there are some bug in some sort version

below sort on my system that didn't have issue
1. sort on solaris (can't get version)
2. sort (GNU coreutils) 8.13 (on Unbutu 12.04)

got some issue in sort 5.97(on RHEL 5.4), as below:

# sort  1.txt      
pba;n
pban;k
pbanthia;b
pbanthia;c
pba;s
pbax;n

# sort -t";" -k1,1 1.txt
pba;n
pba;s
pban;k
pbanthia;b
pbanthia;c
pbax;n

# sort --version
sort (GNU coreutils) 5.97