Shell Programming and Scripting

if file “a” is：
AA spring 322
summer 277
autumn 4332
winter 632
BB summer 777
winter 987
spring 483
CC autumn 3222
summer 4922

and file “b” is：
AA spring 322 summer 277 autumn 4332 winter 632 BB summer 777 winter 987 spring 483 CC autumn 3222 summer 4922

then ，how to do？
thanks！

Have you tried one of the suggested solutions? How?


Regards

sorry ,the file "b" is wrong.
this is my mean :
file “b” ：
AA spring 322 summer 277 autumn 4332 winter 632
BB summer 777 winter 987 spring 483
CC autumn 3222 summer 4922

then ，how to do？
thanks！

Do you really have a file like this, with records beginning with "AA", "BB"...etc:

Code:

awk 'NR !=1 && /^[A-Z]/{printf("\n%s ",$0);next}
{printf("%s ",$0)}
END{print}' a

Regards

I tried , but the result is "a" ,and not "b".

What do you mean by that?
I don't know how you tried it, but this is what I get:

Code:

$ cat a
AA spring 322
summer 277
autumn 4332
winter 632
BB summer 777
winter 987
spring 483
CC autumn 3222
summer 4922
$
$ awk 'NR !=1 && /^[A-Z]/{printf("\n%s ",$0);next}
{printf("%s ",$0)}
END{print}' a
AA spring 322 summer 277 autumn 4332 winter 632 
BB summer 777 winter 987 spring 483 
CC autumn 3222 summer 4922
$

Regards

[root@APP1 333]# more 11.txt
AA spring 322
summer 277
autumn 4332
winter 632
BB summer 777
winter 987
spring 483
CC autumn 3222
summer 4922
[root@APP1 333]# awk 'NR !=1 && /^[A-Z]/{printf("\n%s ",$0);next}
> {printf("%s ",$0)}
> END{print}' 11.txt
AA spring 322
summer 277 autumn 4332
winter 632
BB summer 777
winter 987
spring 483
CC autumn 3222
summer 4922


my result is really "a" ,and not "b".