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docs: update

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Dylan Araps 2019-09-24 08:25:37 +03:00
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@ -895,8 +895,9 @@ var=$((var2 > var ? var2 : var))
**Example Function:**
```sh
# Usage: is_float "number"
is_float() {
# Usage: is_float "number"
# The test checks to see that the input contains
# a '.'. This filters out whole numbers.
[ -z "${1##*.*}" ] &&