Re: -eq and strings

[Rob la Lau]

On 06-03-17 15:16, Reuti wrote:
> if ! expr "$x" : '[[:digit:]]*$' >/dev/null; then echo no; fi
> 
> if [ -n "${x//[0-9]/}" ]; then echo no; fi

True, but regular expressions are usually considered expensive.
(Must admit I never benchmarked.)

And I know 1 regex won't considerably slow down my script, but it's
become a habit to always try and program as light as possible.

-- 
-- Rob la Lau
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-- Sysadmin en webdeveloper in ruste
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