Re: [Nolug] Lists in bash

Script:

#!/bin/bash

counter=0
countupto=11
while [ "$counter" != "$countupto" ]
do
    echo $counter
    let counter+=1
done

Result:

john@localhost:~$ bash test
0
1
2
3
4
5
6
7
8
9
10

You could set countupto however you want.

--John

----- Original Message -----
From: "Ron Johnson" <ron.l.johnson@cox.net>
To: "NOLUG ML" <nolug@joeykelly.net>
Sent: Wednesday, February 12, 2003 3:54 PM
Subject: Re: [Nolug] Lists in bash

> On Wed, 2003-02-12 at 13:05, Brett D. Estrade wrote:
> > #!/usr/local/bin/bash
> >
> > # define list - note parans
> > list=(1 2 3 4 5 6 7 8 9 10 11 12 13)
> >
> > # cycle through list - note array ref and "@"
> > # in the index spot
> >
> > for i in "${list[@]}"; do
> > echo $i
> > done
> >
> > #----end of script
>
> Thanks. However, what if I had an arbitrarily large number that I
> wanted in the list.
>
> Are you saying that there's no way to do nummeric sequences?
>
> > --- Ron Johnson <ron.l.johnson@cox.net> wrote:
> > > Hi,
> > >
> > > This, I know how to do:
> > > $ for i in 1 2 3 4 5 ; do echo $i ; done
> > > 1
> > > 2
> > > 3
> > > 4
> > > 5
> > >
> > > That's great, and reminds me of python. Is there a syntax for making
> > > arbitrarily long numerical lists, without having to enumerate each
> > > number?
> > >
> > > For example, these syntax attempts failed:
> > > $ for i in 1-5 ; do echo $i ; done
> > > 1-5
> > > $ for i in 1..5 ; do echo $i ; done
> > > 1..5
> > > $ for i in [1-5] ; do echo $i ; done
> > > [1-5]
> > >
> --
> +------------------------------------------------------------+
> | Ron Johnson, Jr. Home: ron.l.johnson@cox.net |
> | Jefferson, LA USA http://members.cox.net/ ron.l.johnson |
> | |
> | "For me and windows it became a matter of easy to start |
> | with, and becoming increasingly difficult to be produc- |
> | tive as time went on, and if something went wrong very |
> | difficult to fix, compared to linux's large over head |
> | setting up and learning the system with ease of use and |
> | the increase in productivity becoming larger the longer I |
> | use the system." |
> | Rohan Nicholls , The Netherlands |
> +------------------------------------------------------------+
>
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Received on 02/12/03