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From: david <zsh@rayninfo.co.uk>
To: zsh-users@zsh.org
Subject: if (()){}else{} documented?
Date: Tue, 20 Apr 2021 15:40:38 +0100	[thread overview]
Message-ID: <1154b0e1-e5ad-70be-f620-1368c86f12ed@rayninfo.co.uk> (raw)

Hi

I have been in a world of pain playing around with compound control 
structures

e.g. this only works as a single line (is that true?)

  if (( $1 == 4 )) { echo good } else { echo bad }

just wondered where I could read up on this?



f(){if (($1==4)){echo ok} else {echo nok} }

or

joe(){ [[ $1 > 4 ]] && echo big || echo small }

or

fred(){ if [[ $1  =~ fred ]] { echo ok} else {echo nok} }


There seems to be some arbitrariness as to when spaces are required

zzapper



             reply	other threads:[~2021-04-20 14:42 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-20 14:40 david [this message]
2021-04-20 15:19 ` Marc Chantreux
2021-04-20 15:28   ` Lawrence Velázquez
2021-04-20 15:32     ` Marc Chantreux
2021-04-21  8:46   ` zzapper
2021-04-21 10:41     ` Marc Chantreux
2021-04-21 12:32       ` zzapper
2021-04-21 14:59         ` Marc Chantreux
2021-04-21 15:01         ` Marc Chantreux
2021-04-21 13:57     ` Bart Schaefer
2021-04-20 15:33 ` Lawrence Velázquez
2021-04-21  9:16   ` zzapper

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