NOOB code question

Question

've got code for a geeklet to display current and forecast weather. Here's what the output looks like now:
Now | Fair, 32F Tomorrow | Sunny, 32|21F
I'm trying to accomplish two goals:
1. add degree symbols between the temp and the "f"
2. break "now" and "tomorrow" onto two different lines
Code is below. Anyone? (Obviously what I don't' know about shell commands, UNIX, and life could fill multiple volumes.
Thanks in advance,
Proofrock
#!/bin/sh
normal='[0m'
bold='[1m'
italic='[3m'
underline='[4m'
boldOff='[22m'
italicOff='[23m'
underlineOff='[24m'
fgBlack='[30m'
fgRed='[31m'
fgGreen='[32m'
echo "Now | ${fgRed}\c"
curl --silent "http://weather.yahooapis.com/forecastrss?p=USVA0023&u=f" | grep -e "Forecast:" -A2 -B2 |tail -n 4 | grep -v orecast | sed -e 's/
//' -e 's/
//' | sed -n -E '2n;s/(.+)[ ]\-[ ](.)\..:[ ](0-9).:[ ](0-9+)/'"$normal"' Tomorrow | '"$fgRed "'\2, \3|\4 f'"$normal"'/;p' | tr '\n' ' '

Answer 1

Don't let your thread be dragged off on a tangent.
The problem is that your "geektool" is just a crude hack and I don't like such things. If you run just the curl command, you'll see that the output is XML - an RSS feed. That is a structured, parseable document. There is no need for sed scripts.
Here is a little Perl script that runs curl, gets the content, feeds it into a simple XML parser, and prints it out nicely. I think you will agree that it is far more readable than sed.
#!/usr/bin/perl -w
use strict;
use Term::ANSIColor;
use XML::Simple;
my $xml =
`/usr/bin/curl --silent "http://weather.yahooapis.com/forecastrss?p=USVA0023&u=f"`;
my $data = XMLin($xml);
my $current = $data->{channel}->{item}->{'yweather:condition'};
my $forecast = $data->{channel}->{item}->{'yweather:forecast'};
printf "Current conditions: %s%s, %d° F%s
color('bold'),
$current->{text}, $current->{temp},
color('reset');
printf "Today: %s%s, low %d° F, high %d° F%s
color('bold'),
$forecast->[0]->{text}, $forecast->[0]->{low}, $forecast->[0]->{high},
color('reset');
printf "Tomorrow: %s%s, low %d° F, high %d° F%s
color('bold'),
$forecast->[1]->{text}, $forecast->[1]->{low}, $forecast->[0]->{high},
color('reset');
I encourage you to run the curl script yourself to look at the output. There is a wealth of information in that XML data you can display. I have hard-coded 'F' for temperature units, but you could easily extract the units from the data.