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sorting doubt

 
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# 1  
Old 11-21-2008
sorting doubt
HI,
I would like to know if there if any sorting command which uniquifies the list but does not arrange in alphabetical order.
ex- I have
b
b
a
b

Output I want is :
b
a

I am trying sort -u and this does the sorting in alphabetical order.

Please help friends
# 2  
Old 11-21-2008
Quote:
Originally Posted by abhishekarun123
HI,
I would like to know if there if any sorting command which uniquifies the list but does not arrange in alphabetical order.
ex- I have
b
b
a
b

Output I want is :
b
a

I am trying sort -u and this does the sorting in alphabetical order.

Please help friends
Are you open to awk ? If so, try

Code:
awk '!x[$1]++' list.txt

# 3  
Old 11-21-2008
It is not working for me. Is that an unix xommand ?
Any other suggestion?
# 4  
Old 11-21-2008
Yes:
Code:
perl -ne'print unless $_{$_}++'

Could you clarify what's wrong with the awk solution?
# 5  
Old 11-21-2008
thanks !!

when I used that command i got an error as : x[: Event not found.
perhaps i am using it wrongly, its new to me ..
# 6  
Old 11-21-2008
Quote:
Originally Posted by abhishekarun123
thanks !!

when I used that command i got an error as : x[: Event not found.
perhaps i am using it wrongly, its new to me ..
The problem is that you're using a C shell, try running the command from another shell.
Last edited by radoulov; 11-21-2008 at 08:17 AM..
 
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