Re: [dwm] dwm with dzen status bar

From: Oliver Heins <>
Date: Fri, 04 Jul 2008 11:25:55 +0200

pancake <> writes:

> On Thu, 2008-07-03 at 14:59 +0200, Oliver Heins wrote:
>> Hi Hugo.
>> | ~$ time (n=0; for i in {1000..1}; do n=$(($n+$i)); done; echo $n)
>> I don't know if arithmetic evaluation is a bashism, but I think the
>> costs for using bc are quite high. However, I the let syntax (e.g.,
>> »let "n = n +i"«) should work with all posix-shells and therefore be
>> portable.
> its posix. the fork is also expensive, not only bc.
> 'let' is a bashism i think. shouldnt be used imho.

Perhaps I'm misguided by

This site is about the korn shell, which is the standard posix shell.

There it's said, »The Korn shell or POSIX shell includes an alternative
form of the let command if only a single expression is to be evaluated.«

That alternative form is like ((x = x / 3)), and it's limited.

Best regards,

-- GnuPG-Key: gpg --recv-keys 0x9A00D827
GnuPG-Fingerprint: F27A BA8C 1CFB B905 65A8  2544 0F07 B675 9A00 D827
Please avoid sending me Word or PowerPoint attachments.
Received on Fri Jul 04 2008 - 11:26:10 UTC

This archive was generated by hypermail 2.2.0 : Sun Jul 13 2008 - 15:53:19 UTC