Re: >= and <= for string comparison

[Peng Yu]

OK. I never thought about that.

It is functionally equivalent, but not as readable as >= and <=.

For the same logic, for arithmetic operators, we could use ((! (x< y)
)) and ((! (x > y) )). But there are still >= and <= for arithmetic
operators. Why don't have >= and <= for strings?

On 1/16/23, Kerin Millar <kfm@plushkava.net> wrote:
> On Mon, 16 Jan 2023 12:01:12 -0600
> Peng Yu <pengyu.ut@gmail.com> wrote:
>
>>        string1 < string2
>>               True if string1 sorts before string2 lexicographically.
>>
>>        string1 > string2
>>               True if string1 sorts after string2 lexicographically.
>>
>> According to the manual, >= and <= are not available for string
>> comparison. But if >= and <= are available for arithmetic expression.
>> Why >= and <= can not be introduced for string comparison? Currently,
>> as a walkaround, I have to use > and = for >=, and < and = for <=. It
>> is rather cumbersome to write bash code in this way.
>
> This is not a response to the question itself but the penultimate sentence
> isn't true. [[ ! str1 < str2 ]] and [[ ! str1 > str2 ]] would also do.
>
> --
> Kerin Millar
>


-- 
Regards,
Peng