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Re: Substring search in dash [ _NOT_ bash ] shell

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On 2016-09-26 at 23:49, Richard Owlett wrote:

> On 9/26/2016 10:42 AM, Greg Wooledge wrote:
>
>> On Mon, Sep 26, 2016 at 10:39:59AM -0500, Richard Owlett wrote:
>>
>>> #      string if [ "`hostname`" = bob ]; then echo bob.cfg; fi
>>>
>>> I need for the case when evaluates to marybobsam .
>>> I can find examples in bash shell, but I need dash.
>>
>> Are you asking how to check for the substring "bob" in your input,
>> in POSIX sh?  Use case, and a glob:
>>
>> case $input in
>>    *bob*) echo "Bob found." ;;
>> esac
>>
>> case $(hostname) in
>>    *bob*) echo "I must be a Bob." ;;
>> esac
> 
> Thank you. I was expecting an if...fi construct.

Some such thing could be used when checking for an exact string, but for
substring matching, the example given is better.

> Is dash documented anywhere?
> All I've found are pages saying that some "bashisms" do not work 
> in dash :<

The dash manual page ('man dash') seems fairly comprehensive, on brief
observation. It doesn't seem as lengthy or as detailed as the bash man
page (which I _have_ actually read full-length, believe it or not), but
it does seem to cover most things.

-- 
   The Wanderer

The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man.         -- George Bernard Shaw

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Re: Substring search in dash [ _NOT_ bash ] shell Greg Wooledge <wooledg@eeg.ccf.org> - 2016-09-26 17:50 +0200
  Re: Substring search in dash [ _NOT_ bash ] shell Richard Owlett <rowlett@cloud85.net> - 2016-09-27 06:00 +0200
    Re: Substring search in dash [ _NOT_ bash ] shell The Wanderer <wanderer@fastmail.fm> - 2016-09-27 06:20 +0200
    Re: Substring search in dash [ _NOT_ bash ] shell David <bouncingcats@gmail.com> - 2016-09-27 10:00 +0200

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