How to convert data types in ksh ?

[rogers42]

Hi Folks,

A snippet of my Korn shell script is as follows

c1=`grep -c "AAA" file1`
c2=`grep -c "BBB" file2`
Total = $c1 + $c2

I have tried changing the variable types from char to integers using "typeset -i c1" command but that did not help

Any suggestions to how I can add c1 & c2 ?

Thanks in advance

rogers42

 

[feherke]

Hi

[red]let[/red] Total=$c1+$c2

[gray]# or[/gray]

[red](([/red]Total=c1+c2[red]))[/red]

Feherke.

http://rootshell.be/~feherke/

 

[Mike042]

It can also be done in one long line (in Korn Shell), without creating c1 or c2 as follows:

Total=$(( $(grep -c "AAA" file1) + $(grep -c "BBB" file2) ))


I hope that helps.

Mike

 

[rogers42]

Both the suggestions are very helpful.

Thanks

rogers42