Re: Packages - how to make an uninstaller?
Re: Packages - how to make an uninstaller?
- Subject: Re: Packages - how to make an uninstaller?
- From: Stephen Kay <email@hidden>
- Date: Wed, 29 Mar 2017 17:17:52 -0700
- Thread-topic: Packages - how to make an uninstaller?
Thanks. Does anyone have a link to a reference/list about installer
environment variables?
- Stephen
On 3/29/17 12:01 PM, "Conor Schutzman" <email@hidden> wrote:
>$3 is an environment variable that exists for scripts executed by
>installer, it refers to the installation volume.
>
>For example, if you had multiple partitions, and were booted to
>MacintoshHD, but were installing to a partition named Storage; $3 would
>resolve to “/Volumes/Storage”. In most traditional environments, $3 just
>resolves to “/“, but it’s important to understand it’s use for more
>specialized/exotic configurations.
>
>> On Mar 29, 2017, at 11:56 AM, Stephen Kay <email@hidden> wrote:
>>
>> Ok, thanks - I get it.
>>
>> So in this example:
>>
>> ## Is Foo installed? ##
>> if [[ -d "$3/Applications/Foo.app" ]] ; then
>>
>> Where is $3 coming from? I understand that $1 $2 $3 etc. are positional
>> variables.
>>
>> Thanks,
>> - Stephen
>>
>>
>> On 3/28/17 2:52 PM, "Stephane Sudre" <email@hidden> wrote:
>>
>>> On Tue, Mar 28, 2017 at 11:30 PM, Mike Solin <email@hidden>
>>>wrote:
>>>> It¹s built-in to the shell. See 'man bash'.
>>>
>>> On Tue, Mar 28, 2017 at 2:28 PM, Stephen Kay <email@hidden> wrote:
>>>
>>>> Thanks for the example! Excuse my ignorance, but what does '-d'
>>>>command
>>>> do? I've been trying to search for info on this, related to
>>>> shell-scripting, but couldn't find anything.
>>>
>>> To avoid reading more than 10 pages of the bash man pages to find the
>>> answer:
>>>
>>>
>>>http://stackoverflow.com/questions/59838/check-if-a-directory-exists-in-
>>>a-
>>> shell-script
>>>
>>
>>
>>
>>
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