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Bash scripting: convert float to integer

As bash is not able to handle floats the best way is to convert a float number (which is represented as a string, for example an output with awk) into an integer.

To do this [1,2]:
float=1.23
int=${float%.*}

Refs:
[1] Stackexchange.com/Unix & Linux
[2] Linuxquestions.org