Terminal Calculator
November3
In this example, i am gonna to show how to create a Terminal Calculator.
Open your .bashrc file from your home directory (It is a hidden file). Before making changes, please take a backup of the .bashrc file.
Open the file and add the below lines in your end of the .bashrc file.
#calculator function
function calc
{
echo "${1}" | bc -l;
}
And save the .bashrc file.
Now, just restart your console. and type the below command.
$ calc 5+5
10
$calc 10*5
50
If you like to calculate the sine and cosine values, then you have to use it like this
$ calc "s(45)"
.85090352453411842486
$ calc "c(90)"
-.44807361612917015236
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