string_to_int.sh

#!/usr/bin/env bash
# string_to_int.sh - Shell script to convert a string or float number
# to an integer.
# @link http://pioupioum.fr/snippets/bash-convertir-string-to-integer.html 
 
function string_to_int ()
{
    LANG=C
    d=${1##*.}
    if [[ ${#1} -eq ${#d} ]]; then
        d=0
    fi
    e=${1%.*}
    e=${e//,/}
    printf %.0f "$e.$d" 2>/dev/null
}
 
not_int=("12.652" "-12.652" 12.652 14 "12,652" foo "1,254.8" 1,254.8 "125,160,254.8" "125,160,254")
 
for value in ${not_int[@]}; do
    echo "Convert $value to int: $(string_to_int $value)"
done