function gettitleanddescription { if [ ! -e /tmp/apod.html ]; then findurlbydate fi IMGDET="`grep -o '.*' /tmp/apod.html | sed 's/$\|$//g' | sed -n '2p'`" echo "TITLE: `grep -o '.*' /tmp/apod.html | sed 's/$\|$//g' | sed -n '1p'`" echo " " echo "EXPLANATION:" echo " " sed -n '/ Explanation: /,/ /p' /tmp/apod.html | sed -e :a -e 's/]*>//g;/ $IMG /,/ /p" /tmp/apod.html | sed -e :a -e 's/]*>//g;///' -e 's/.*=//' -e 's/"//g' -e 's/^/http:\/\/apod.nasa.gov\/apod\//' > /tmp/pic_url } #Main function foccured="0" rangeoccured="0" isdetails_reqd="false" isrange_there="0" STATUS="`wget --spider --server-response apod.nasa.gov 2>&1 | grep '200\ OK' | wc -l`" doccured="0" toccured="0" if [ "$STATUS" -eq "1" ] then echo "Connecting to nasa.gov..." else echo "Site Currently unavailable...

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Answered Same Day Oct 26, 2021

Solution

Aditya answered on Oct 28 2021

141 Votes

function gettitleanddescription {

if [ ! -e /tmp/apod.html ]; then
findurlbydate
fi
    IMGDET="`grep -o '
.*
' /tmp/apod.html | sed 's/$
\|<\
$
g' | sed -n '2p'`"
        echo "TITLE: `grep -o '
.*
' /tmp/apod.html | sed 's/$
\|<\
$
g' | sed -n '1p'`"
        echo " "
        echo "EXPLANATION:"
        echo " "
sed -n '
Explanation: <\
,
p> p' /tmp/apod.html |
sed -e :a -e 's
[^>]*
g;
N;
a' |
grep -Ev 'Explanation:' |
tr '\n' ' ' |
sed 's/ /\n\n/g' |
awk 'NF { print $0 "\n" }' |
sed 's/^[ \t]*
' |
sed 's/[ \t]*$
'




        IMG="$(echo -e "${IMGDET}" | sed -e 's/^[[:space:]]*
' -e 's/[[:space:]]*$
')"


sed -n "
$IMG <\
,
\/cente
p" /tmp/apod.html |
sed -e :a -e 's
[^>]*
g;
N;
a' |
grep -Ev '$IMG' |
tr '\n' ' ' |
sed 's/ /\n\n/g' |
awk 'NF { print $0 "\n" }' |
sed 's/^[ \t]*
' |
sed 's/[ \t]*$
'


}
function findurlbydate {

    dt="$1"
    URL="http:
apod.nasa.gov/apod/ap${dt}.html"

wget "${URL}" --quiet -O /tmp/apod.html
grep -m 1 jpg /tmp/apod.html | sed -e 's
' -e 's
' -e 's/.*=
' -e 's/"
g' -e 's/^/http:\/\/apod.nasa.gov\/apod\
' > /tmp/pic_url
}
#Main...

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