Date: Tue, 25 Apr 2000 14:19:15 -0700 From: Alfred Perlstein <bright@wintelcom.net> To: Doug Barton <Doug@gorean.org> Cc: Greg Pavelcak <gpav@som.umass.edu>, freebsd-questions@FreeBSD.ORG Subject: Re: Making sh script pause for input Message-ID: <20000425141915.G9754@fw.wintelcom.net> In-Reply-To: <Pine.BSF.4.21.0004251258300.38506-100000@dt051n0b.san.rr.com>; from Doug@gorean.org on Tue, Apr 25, 2000 at 01:01:49PM -0700 References: <20000425110642.D9754@fw.wintelcom.net> <Pine.BSF.4.21.0004251258300.38506-100000@dt051n0b.san.rr.com>
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* Doug Barton <Doug@gorean.org> [000425 13:31] wrote: > On Tue, 25 Apr 2000, Alfred Perlstein wrote: > > > * Doug Barton <Doug@gorean.org> [000425 11:01] wrote: > > > Greg Pavelcak wrote: > > > > > > > > This is driving me nuts. I want a script that prompts with a > > > > student's name and then waits for input regarding that student > > > > then moves on. I've tried using xargs and a script like this: > > > > > > The bad news, you can't do that with sh because once you tell it to > > > take its input from a file that's where it's going to take all of its > > > input from. The good news, this is a really easy perl script, and this > > > kind of processing is one of the things perl is really good for. > > > > Actually... :) > > > > http://www.complete.org/mailinglists/archives/aclug-l-199811/msg00018.html > > > > explains some really nifty things you can do with sh and filehandles. > > None of which apply to the original poster's exmple. He wants to > read from the real stdin while inside a loop which is already reading its > stdin from a file. If you can do what the author asked for in sh, I'd love > to see it. > > I'm as big of a bourne shell scripting advocate as anyone, but > there are some things that it doesn't do well, and this is one of them. > #!/bin/sh #(ph33r) exec 3<contractsS00 while read LOGNUM CLASS LNAME FNAME GPA MAJOR 0<&3 ; do echo $FNAME $LNAME ; echo -n "Status? " ; read STATUS ; echo "$LOGNUM $CLASS $LNAME $FNAME $GPA $MAJOR $STATUS" >> newfile ; done -- -Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org] "I have the heart of a child; I keep it in a jar on my desk." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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