Re: [gentoo-user] Re: OT scripting - strip zero if between period and digit

[Kai Peter]

On 2019-01-24 17:40, Michael Orlitzky wrote:
> On 1/24/19 4:00 AM, Gerrit Kühn wrote:
>>
>> ---
>> [me@you ~]# ip=01.02.00.0004; for d in $(echo "${ip}"|tr '.' '\n');
>> do myip="${myip}"$(printf "%i" "${d}")"." ; done; echo ${myip%.}
>> 1.2.0.4
>
> That turns "010" into "8". Using a real programming language with a
> parser is only heavyweight compared to solutions that don't work.
>
>   $ ip=01.02.00.010; for d in $(echo "${ip}"|tr '.' '\n'); \
>     do myip="${myip}"$(printf "%i" "${d}")"." ; done; echo ${myip%.}
>   1.2.0.8
Really interesting _how_ people think. Find the error:

echo 01.02.00.010 | sed 's/\.0/\./g' | sed 's/^0//g' | sed 's/\.0/\./g' 
| sed 's/\.\./.0./g' | sed 's/^0//g'



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