Data parsing for each line

sandeep_hello · 05-13-2014, 07:56 AM

I am trying to parse below line in different order but it is not working.

a="1" b="2" c="3" d="4" e="5" f="6" g="7" h="8"

output should be

5,1,3,4,2,7,6,8

Please suggest me the best way to do this.

szboardstretcher · 05-13-2014, 08:37 AM

Parse it with what? What have you tried?

TenTenths · 05-13-2014, 08:38 AM

Code:

echo "5,1,3,4,2,7,6,8"

and if you want a serious answer, try telling us the logic behind the re-ordering of the output.

sandeep_hello · 05-13-2014, 08:55 AM

I want to parse field by taking values

like
first value of e
second value of a
third value of c
so on..

each value should be separated with "," comma.

TenTenths · 05-13-2014, 08:58 AM

And how are we supposed to know what this sequence is?

Or is this another input that you're going to have?

Also post what you've written already.

sandeep_hello · 05-13-2014, 09:02 AM

sequence is

e,a,c,d,b,g,h

each character will have its value

I was trying to do with awk and sed but not getting success.

TB0ne · 05-13-2014, 09:42 AM

Quote:

Originally Posted by sandeep_hello

sequence is

e,a,c,d,b,g,h

each character will have its value I was trying to do with awk and sed but not getting success.

Ok...so as we asked before, post what you have written/tried on your own. You were asked in post #2 and #5. We will be glad to help, but we're not going to write your homework scripts for you.

sandeep_hello · 05-13-2014, 10:48 AM

ok fine

I am doing parsing in this way.

# cat test.txt
a="1" b="2" c="3" d="4" e="5" f="6" g="7" h="8"

# cat test.txt |awk -F " " '{print $5 "," $1 "," $3 "," $4 "," $2 "," $6 "," $7 "," $8 }' |awk -F "\"" '{print $2 "," $4 "," $6 "," $8 "," $10 "," $12 "," $14 "," $16}'

Output is

5,1,3,4,2,6,7,8

Is it right way or can make more easy?

szboardstretcher · 05-13-2014, 10:58 AM

To keep it more 'simple', first thing that came to mind was:

Code:

vars=$(cat test.txt | sed 's/\ /;/g'); eval $vars; echo "$e,$a,$c,$d,$b,$f,$g,$h"

output:
5,1,3,4,2,6,7,8

TB0ne · 05-13-2014, 11:07 AM

Quote:

Originally Posted by sandeep_hello

ok fine I am doing parsing in this way.

# cat test.txt
a="1" b="2" c="3" d="4" e="5" f="6" g="7" h="8"

# cat test.txt |awk -F " " '{print $5 "," $1 "," $3 "," $4 "," $2 "," $6 "," $7 "," $8 }' |awk -F "\"" '{print $2 "," $4 "," $6 "," $8 "," $10 "," $12 "," $14 "," $16}'

Output is
5,1,3,4,2,6,7,8

Is it right way or can make more easy?

There are MANY ways to do what you're after, depending on the language and your requirements. You don't really say what you're after, though, and what you're doing is VERY simplistic.

If your goal is to have a script that actually reads the values of a, b, c, etc., and print them out, then this isn't the way to do it; szboardstretcher has given the solution for that.