topic Re: Does anyone know this:? (Number processing!) in Operating System - HP-UX

Does anyone know this:? (Number processing!)

rveri — Tue, 21 Mar 2006 01:36:35 GMT

Hi All ,

Q: Does anyone know , how add 5 numbers using dc ?

I have checked man page but not able to understand much. Nor I got a good guide to do this.

I can use this command to add 2 number , but unable to do more than 2.

# echo " 5 7 + p " | dc
12
#

Thanks in advance.

Re: Does anyone know this:? (Number processing!)

RAC_1 — Tue, 21 Mar 2006 02:04:49 GMT

I can.

export p=9
echo "2+5+$p" |bc

All is fine.

Re: Does anyone know this:? (Number processing!)

Patrice Le Guyader — Tue, 21 Mar 2006 02:21:06 GMT

Hi,

Another way to add three number :
Hpux:/# let 'p=5+7'
Hpux:/# echo $p
Hpux:/# 12
Hpux:/# let 'q=5+7+p'
Hpux:/# echo $q
Hpux:/# 24

Hope this helps
Pat

Re: Does anyone know this:? (Number processing!)

Hemmetter — Tue, 21 Mar 2006 02:26:28 GMT

Hello rveri

Did you try:

# echo " 3 4 5 + + p" | dc
12

echo " 3 4 5 * + p" | dc
23

rgds
HGH

Re: Does anyone know this:? (Number processing!)

Peter Godron — Tue, 21 Mar 2006 02:53:23 GMT

rveri,
for 5 number is would be:
# echo " 3 4 5 6 7 + + + + p"|dc
25

Why the use of dc?

Re: Does anyone know this:? (Number processing!)

Yogeeraj_1 — Tue, 21 Mar 2006 02:57:30 GMT

hi,
if you can put it all in a file,

e.g.

12
23
34
45
45
56

you can then just do:
cat datafile.lis | awk '{sum=sum+$1} End {print sum}'

hope this helps too!

kind regards
yogeeraj

Re: Does anyone know this:? (Number processing!)

Indira Aramandla — Tue, 21 Mar 2006 03:18:14 GMT

Hi rveri,

To add 5 numbers using dc you could do either way

echo "5 +5 +5 +5 +5 +p"|dc
25

echo "5 5 5 5 5 +++++p"|dc
25

Indira A

Re: Does anyone know this:? (Number processing!)

Muthukumar_5 — Tue, 21 Mar 2006 03:24:02 GMT

Try as,

# echo "5 7 9 11 13 + + + + p" | dc

More ways are there,

a) expr
b) awk
c) echo $(())
d) perl

etc.

--
Muthu

Re: Does anyone know this:? (Number processing!)

Arunvijai_4 — Tue, 21 Mar 2006 03:30:09 GMT

Hello,

Easiest way in perl,

# perl -e "print 10+20+30+40+50"

-Arun

Re: Does anyone know this:? (Number processing!)

Raj D. — Tue, 21 Mar 2006 06:00:32 GMT

hi,

You can use
# echo " 1 2 3 4 +++ p " | dc
10
#

You can also use :
1. awk
2. expr
3. echo
4. perl
5. sed
6. bc

Cheers,
Raj.

Re: Does anyone know this:? (Number processing!)

Arunvijai_4 — Tue, 21 Mar 2006 07:35:21 GMT

Hi,

The Logic with "dc" is simple, number of + signs = (n-1)

# echo "1 2 3 4 5 + + + + p" | dc

You need to specify four + signs here.

-Arun

Re: Does anyone know this:? (Number processing!)

Arturo Galbiati — Wed, 22 Mar 2006 04:46:57 GMT

Hi Rveri,
why not?
echo "1+2+3+4+5"|bc
HTH,
Art