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Groups > linux.debian.user > #168775

Re: bash help please

From David Wright <deblis@lionunicorn.co.uk>
Newsgroups linux.debian.user
Subject Re: bash help please
Date 2016-06-10 06:00 +0200
Message-ID <rIlLX-7Pi-9@gated-at.bofh.it> (permalink)
References <rIkGd-74R-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu 09 Jun 2016 at 22:41:27 (-0400), Gene Heskett wrote:
> A bash script that has worked most of a decade now refuses.
> 
> For instance, assume that var InMail is = "gene", and can be echoed from 
> the command line using $InMail like this.
> gene@coyote:~$ echo $InMail
> gene
> But I'll be switched if I can get a result from a line of code resembling 
> this from the command line while attempting to troubleshoot a 110 line 
> bash script: which asks "if test [${InMail} = "gene"]
> 			  then
> 				-----
> 			 elif (another name)
> 				yadda yadda
> 
> gene@coyote:~$ echo `test [${InMail} = "gene"]`
> 
> All I get is the linefeed.  Obviously I'm losing it, so how do I 
> translate and get usefull output for troubleshooting?

$ `[ ${InMail} = "gene" ]` ; echo $?

0
$ `[ ${InMail} = "xgene" ]` ; echo $?
1
$ `test ${InMail} = "gene"` ; echo $?

0
$ `test ${InMail} = "xgene"` ; echo $?
1
$ 

elif needs [], not (), and it needs a then too.

[ is a command like test, so it must be followed by a space
before its argument.

Often the easiest way of solving these is grep -A ... used with
/etc/init.d/*

Cheers,
David.

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Thread

bash help please Gene Heskett <gheskett@shentel.net> - 2016-06-10 04:50 +0200
  Re: bash help please Lars Noodén <lars.nooden@gmail.com> - 2016-06-10 05:10 +0200
    Re: bash help please Gene Heskett <gheskett@shentel.net> - 2016-06-10 06:40 +0200
  Re: bash help please David Wright <deblis@lionunicorn.co.uk> - 2016-06-10 06:00 +0200
    Re: bash help please Gene Heskett <gheskett@shentel.net> - 2016-06-10 07:10 +0200
      Re: bash help please David Wright <deblis@lionunicorn.co.uk> - 2016-06-10 07:40 +0200
        Re: bash help please Gene Heskett <gheskett@shentel.net> - 2016-06-10 08:40 +0200
  Re: bash help please David Christensen <dpchrist@holgerdanske.com> - 2016-06-10 06:10 +0200
    Re: bash help please Gene Heskett <gheskett@shentel.net> - 2016-06-10 07:10 +0200
      Re: bash help please David Christensen <dpchrist@holgerdanske.com> - 2016-06-11 05:50 +0200
  Re: bash help please <tomas@tuxteam.de> - 2016-06-10 09:10 +0200

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