A quick script to read an xml file from SMSBackup and create a new file based on filtering by a wildcard (date/sender/etc).

sms_filter.sh

#!/bin/bash
#
# A quick script to read an xml file from SMSBackup and create a new file
# based on filtering by a wildcard (date/sender/etc).
# ToDo smarter filtering by tags set in xml.

filename=
wildcard=
new_file=
xsl=

if [ -f "$new_file" ] ; then
  echo "$new_file" found.
	echo copying to "$new_file".bak
	cp $new_file "$new_file".bak
else
	touch $new_file
fi

echo "<?xml version='1.0' encoding='UTF-8' standalone='yes' ?>" >> $new_file
if [ -n "$xsl" ]; then
    echo "<?xml-stylesheet type=\"text/xsl\" href=\""$xsl"\"?>" >> $new_file
fi
echo "<smses count=xxaazzbdf>" >> $new_file

cat $filename | while read line; do
    if [[ $line = *"$wildcard"* ]]; then
        echo "  $line" >> "$new_file"
    fi
done

echo "</smses>" >> "$new_file"

wc=`cat "$new_file" | wc -l | sed 's/^ *//g'`
# -e is needed for sed to run properly on MacOS apparently.
sed -ie "s/xxaazzbdf/\"$wc\"/g" "$new_file"
# cleanup
rm "$new_file"e 
echo "File filtering and creation complete!"
echo "copied $wc lines from $filename to $new_file"