Retaining Pipeline values

Shell Programming and Scripting
1

Hi,

I am trying to calculate a few values using the below code but it dosent seem to be working.

for i in 1 2 3 4 5 6 7 8
do
j=`expr $i + 3`
x =`head -$j temp1|tail -1|cut -f24 -d","`
y =`head -$j temp1|tail -1|cut -f25 -d","`
c =`expr $x / $y`
echo "$c" >> cal_1
done

I am not getting any values in cal_1 file.
When I execute the script in verbose mode, I see below errors in each iteration:

x: not found
y: not found
c: not found

Can someone suggest a workaround ??

2 
 
j=`expr $i + 3`
x =`head -$j temp1|tail -1|cut -f24 -d","`
y =`head -$j temp1|tail -1|cut -f25 -d","`
c =`expr $x / $y`

There should not be any space between the = and x,y,c

1 Like
3

i think the problem is with spaces

try removing them

for i in 1 2 3 4 5 6 7 8
do
j=`expr $i + 3`;
x=`head -$j temp1|tail -1|cut -f24 -d","`;
y=`head -$j temp1|tail -1|cut -f25 -d","`;
c=`expr $x / $y`;
echo "$c" >> cal_1
done
1 Like
4

Thank a lot both of you.

Valus are populating now.:b:

5

Thanks a lot ! The issue is resolved