Groups > linux.debian.user > #194968

Re: encryption

From	john doe <johndoe65534@mail.com>
Newsgroups	linux.debian.user
Subject	Re: encryption
Date	2018-04-22 08:30 +0200
Message-ID	<vHgFA-if-5@gated-at.bofh.it> (permalink)
References	<vGK2Z-3Dx-1@gated-at.bofh.it> <vGOgh-6Fy-5@gated-at.bofh.it> <vH2CB-7Gd-5@gated-at.bofh.it> <vH2Mi-7JM-15@gated-at.bofh.it> <vH6PU-1SK-15@gated-at.bofh.it>
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On 4/21/2018 9:58 PM, David Christensen wrote:
> On 04/21/18 08:38, john doe wrote:
>> Here's the code I used to let a script prompt for a password:
>>
>> read -s -p "Enter password: "
>> [ $? -ne 0 ] && exit 1
> 
> Note that the above 'read' command will operate differently on Dash and 
> on Bash:
> 
> 2018-04-21 12:53:27 dpchrist@vstretch ~/sandbox/sh
> $ cat read
> read -s -p "Enter password: "
> [ $? -ne 0 ] && exit 1
> echo
> echo $REPLY
> 
> 2018-04-21 12:54:03 dpchrist@vstretch ~/sandbox/sh
> $ dash read
> read: 1: read: Illegal option -s
> 
> 2018-04-21 12:54:06 dpchrist@vstretch ~/sandbox/sh
> $ bash read
> Enter password:
> secret
> 
> 
> Shell scripts using lowest-common denominator Bourne shell syntax are 
> the most portable.  When I start getting fancy with Bash, I switch to Perl.
> 

Thanks David, for pointing out that bit of code won't work in Dash!

That's one of the reasons I have redone all of my scripts to have them 
POSIX compliant while keeping portability a priority! :)

I only speak shell scripting, how would you do that in Perl?

-- 
John Doe

Thread

encryption Brian <ad44@cityscape.co.uk> - 2018-04-20 21:40 +0200
  Re: encryption Greg Wooledge <wooledg@eeg.ccf.org> - 2018-04-20 22:00 +0200
  Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 02:10 +0200
    Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-21 17:30 +0200
      Re: encryption john doe <johndoe65534@mail.com> - 2018-04-21 17:40 +0200
        Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 22:00 +0200
          Re: encryption john doe <johndoe65534@mail.com> - 2018-04-22 08:30 +0200
            Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-22 20:30 +0200
      Re: encryption Glenn English <ghe2001@gmail.com> - 2018-04-21 19:00 +0200
        Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 22:30 +0200
      Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 21:50 +0200
        Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-22 18:20 +0200
          Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-22 18:50 +0200
            Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-23 10:50 +0200
              Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-23 13:20 +0200
                Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-24 20:50 +0200
  Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-21 18:40 +0200
    Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-21 20:20 +0200
      Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-21 21:00 +0200
        Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-21 21:20 +0200
          Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 23:30 +0200
          Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-22 04:30 +0200
            Re: encryption Curt <curty@free.fr> - 2018-04-22 11:20 +0200
              Re: encryption Reco <recoverym4n@gmail.com> - 2018-04-22 11:50 +0200
                Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-22 19:10 +0200
      Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 22:50 +0200
    Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 22:10 +0200
      Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-22 04:00 +0200
        Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-22 17:40 +0200
          Re: encryption Richard Hector <richard@walnut.gen.nz> - 2018-04-23 08:00 +0200
            Re: encryption Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2018-04-23 09:00 +0200
        Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-22 20:10 +0200

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