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Sort from start index and end index in line

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# 1  
Old 09-17-2009
Question Sort from start index and end index in line

Hi All,

I have a file (FileNames.txt) which contains the following data in it.
$ cat FileNames.txt

I want to sort these files names using the number avaialable after the "08Sep" in each file name. The starting index of this number in this filename string will be 17 and end index will 22.

Please help me on how to sort these file names using this number.

Cheers ,
# 2  
Old 09-17-2009
sort -k1.11,1.17 -n  -o myfile.txt myfile.txt

# 3  
Old 09-17-2009
Are you sure the starting index is 17 (not 18) and the ending index is 22 (not 23) since you say the number after the "08Sep" string...
sort -k1.18,1.23 infile

# 4  
Old 09-18-2009
Hi jim mcnamara, shamrock,

Thanks for your great support .. It worked well.. Smilie


Yes, the index should be 18, 23. The thought the string's staring index is 0, that is the reason I have put the index as 17,22.
Do we need to consider the start index as 1 for sort ?? Just curious. Smilie

Thanks again!!!!!!!

# 5  
Old 09-18-2009
open FH,"<b.txt";
my @arr=<FH>;
print  map {$_->[0]} 
          sort {$a->[1] <=> $b->[1]} 
            map {/.*([0-9]{6})\..*/;[$_,$1]} @arr;

# 6  
Old 09-18-2009
Originally Posted by shamrock
Are you sure the starting index is 17 (not 18) and the ending index is 22 (not 23) since you say the number after the "08Sep" string...
sort -k1.18,1.23 infile

Can you please explain why you use 1.18 and 1.23 above?
Can't we use simple 18 and 23 like below
sort -k18,23 infile

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