how can i add two numbers - UNIX for Dummies Questions & Answers

kripssmart · #1 07-11-2008

hi,

i am having one file which looks like the one below:

ABC1
***
1
4

ABC2
***
7
12

ABC3
***
0
34

...

i want to add the two numbers below each ABC and i want to find the largest out of this..

for example: in this case, 0+34=34 is the largest value and i want to get the result ABC3 into a variable.

can anyone help me...

thanks,
Krips.

Tytalus · #2 07-11-2008

There are cleaner ways....but this should work:

Code:

#  cat infile
ABC1
***
1
4

ABC2
***
7
12

ABC3
***
0
34


#  <infile paste - - - - - | awk '{print $3+$4,$1}' | sort -nr | sed q
34 ABC3

OR
#  <infile paste - - - - - | awk '{print $3+$4,$1}' | sort -nr | sed q | cut -d" " -f2
ABC3

HTH

radoulov · #3 07-11-2008

Something like this:

Code:

v=$(awk 'END { print v }
($3 + $4) > m {
  m = $3 + $4
  v = $1
  }' RS= file)

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
How to add numbers	email-lalit	Shell Programming and Scripting	8	05-12-2008 03:34 PM
need top 3 numbers	shary	Shell Programming and Scripting	4	03-24-2008 10:58 PM
ksh and hex numbers	JamesByars	Shell Programming and Scripting	2	01-15-2008 12:36 PM
How to add numbers?	pnxi	Shell Programming and Scripting	7	09-11-2003 03:25 AM
Add some numbers!	TalkShowHost	Shell Programming and Scripting	3	05-15-2002 09:28 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode