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Full Discussion: Script does not stop when doing a read
Top Forums Shell Programming and Scripting Script does not stop when doing a read Post 302143873 by rooseter on Monday 5th of November 2007 02:45:19 AM
Old 11-05-2007
Hi porter,

"while :" would mean to do a loop of the whole while - do block. On this case, it is supposed to echo the question until the user either answers a Y (which on this case will execute the break command) and a N (which will exit the script).

If you put the inner while-do block outside of the outer while-do, the routine will work. It is only when it is inside the outer while-do that the routine goes into loop.

Quote:
Originally Posted by porter
1. what does "while :" mean?

2. everything inside the while/read/do/done will use testdata as stdin, including the "read YESNO", you would need to do

Code:
TTY=`tty`

while read ...
do
...
         read YESNO <$TTY
...
done <testdata

 

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pppoe-setup

PPPOE-SETUP(8)						      System Manager's Manual						    PPPOE-SETUP(8)

NAME

       pppoe-setup - Shell script to configure Roaring Penguin PPPoE client

SYNOPSIS

       pppoe-setup

DESCRIPTION

       pppoe-setup  is a shell script which prompts you for various pieces of information and sets up an /etc/sysconfig/network-scripts/ifcfg-ppp0
       configuration script for the pppoe-start, pppoe-stop and +pppoe-connect scripts.

AUTHOR

       pppoe-setup was written by David F. Skoll <dfs@roaringpenguin.com>.

       The pppoe home page is http://www.roaringpenguin.com/pppoe/.

SEE ALSO

       pppoe(8), pppoe-start(8), pppoe-stop(8), pppoe-connect(8), pppd(8), pppoe.conf(5), pppoe-status(8), pppoe-sniff(8), pppoe-relay(8),  pppoe-
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4th Berkeley Distribution					 21 February 2000						    PPPOE-SETUP(8)
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