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Re: test if a parameter is numeric

X-seq: zsh-users 11183
From: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
To: zsh-users@xxxxxxxxxx
Subject: Re: test if a parameter is numeric
Date: Fri, 09 Feb 2007 18:29:38 -0800
In-reply-to: <Xns98D2ADD16C100zzappergmailcom@xxxxxxxxxxx>
Mailing-list: contact zsh-users-help@xxxxxxxxxx; run by ezmlm
References: <Xns98D2ADD16C100zzappergmailcom@xxxxxxxxxxx>

On Feb 9,  5:05pm, zzapper wrote:
}
} I just want to test if a parameter is numeric
} 
} if [[ "$1" == [0-9] ]]

Better:

  if [[ "$1" = <-> ]]

This is a zsh-ism, so it's not cross-shell portable, but the pattern <->
matches any string having any number of digits and only digits.

Follow-Ups:
- Re: test if a parameter is numeric
  - From: Brian K. White
- Re: test if a parameter is numeric
  - From: Stephane Chazelas

References:
- test if a parameter is numeric
  - From: zzapper

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