#!/usr/bin/bash
sum()
{
echo $1 + $2 | bc
}
# call function and pass cli
# parameters to function
sum $1 $2
Calling script:
[aesteban@localhost ~]$ ./sum.sh 1.4 1.3
2.7
EXAMPLE B) A different way to write sum.sh script:
#!/usr/bin/bash
sum()
{
RESULT=$(echo $1+$2 | bc) # or: RESULT=`echo $1+$2 | bc`
}
sum $1 $2
echo $RESULT
Calling modified script:
[aesteban@localhost ~]$ ./sum.sh 1.7 1.2
2.9
EXAMPLE C) Another way to write the same crap:
#!/usr/bin/bash
sum()
{
echo $1+$2 | bc
}
SUMRESULT=`sum $1 $2`
echo $SUMRESULT
Calling it:
[aesteban@localhost ~]$ ./sum.sh 2.9 3
5.9
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