decimal numbers in shell scripts

[Tony LeBlanc]

Could someone show me how to use decimal numbers in a shell script. I know bc and awk can do it, but how? examples please

Thanks,
Tony

[Patrick Wallek · Accepted solution]

Here is an example of an expression in one of my scripts that does an arithmetic calculation:

used_disk1=`echo "scale=3\n$used_disk + $used_disk1" | bc`


Does this help?

[Tony LeBlanc]

Thanks Patrick, that does exactly what I wanted!