Does anyone know this:? (Number processing!)

[rveri]

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.

[RAC_1]

I can.

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

All is fine.

[Patrice Le Guyader]

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

[Hemmetter · Accepted solution]

Hello rveri

Did you try:

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

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


rgds
HGH

[Peter Godron]

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

Why the use of dc?

[Yogeeraj_1]

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

[Indira Aramandla]

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

[Muthukumar_5]

Try as,

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

More ways are there,

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

etc.

--
Muthu

[Arunvijai_4]

Hello,

Easiest way in perl,

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

-Arun

[Raj D.]

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.

[Arunvijai_4]

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

[Arturo Galbiati]

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