Shell Programming and Scripting

Rai 1
Rai 1 +1HD
Rai 1 +2HD
Rai 2
Rai 2 +1HD
Rai 2 +2HD
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 <channel id="Rai 1">
    <display-name lang="it">Rai 1</display-name>
    <icon src="http://www.my-website.com/logos/Rai_1.png" />
 </channel>
 <channel id="Rai 1 +1HD">
    <display-name lang="it">Rai 1 +1HD</display-name>
    <icon src="http://www.my-website.com/logos/Rai_1_+1HD.png" />
  </channel>
  <channel id="Rai 1 +2HD">
    <display-name lang="it">Rai 1 +2HD</display-name>
    <icon src="http://www.my-website.com/logos/Rai_1_+2HD.png" />
  </channel>
  <channel id="Rai 2">
    <display-name lang="it">Rai 2</display-name>
    <icon src="http://www.my-website.com/logos/Rai_2.png"/>
  </channel>
  <channel id="Rai 2 +1HD">
    <display-name lang="it">Rai 2 +1HD</display-name>
    <icon src="http://www.my-website.com/logos/Rai_2_+1HD.png"/>
  </channel>
  <channel id="Rai 2 +2HD">
    <display-name lang="it">Rai 2 +2HD</display-name>
    <icon src="http://www.my-website.com/logos/Rai_2_+2HD.png"/>
  </channel>
.
.
.
.

awk '
        {print " <channel id=\"" $0 "\">"
         print "   <display-name lang=\"it\">" $0 "</display-name>"
         gsub (/ /, "_")
         print "   <icon src=\"http://www.my-website.com/logos/" $0 ".png\" />"
         print " </channel>"
        }
' file

#!/bin/bash

while read chan
do
    printf "<channel id=\"%s\">\n" "$chan"

    printf "    <display-name lang="it">%s</display-name>\n" "$chan"
    printf "    <icon src=\"http://www.my-website.com/logos/%s.png\" />\n"  \
        "${chan// /_}"
    printf "</channel>\n"
done < infile