[make the centos xml file of packages for installing]

mkxml.sh

#!/usr/bin/bash
# $1 -> rpmdir $2 -> id
set -e

array=()
i=1

#change dir to destdir
cd `pwd`/$1

fakexml=`ls | grep -v '*.sh' | grep -v '*.xml'`

#seperate string 
for element in $fakexml
do

temp=`echo $element`
array[$i]=`echo ${temp} | sed 's/\(.*\).x86.*/\1/g' | sed 's/\(.*\).el7.*/\1/g' | sed 's/\(.*\)-[0-9]\+.[0-9]\+.*/\1/g' | sed 's/\(.*\)-[0-9]\+\(.[0-9]\+\)*.*/\1/g' | sed 's/\(.*\)_[0-9].*/\1/g'`
i=`expr $i + 1`

done

STRING+="  <group>\n"
STRING+="    <id>$2</id>\n"
STRING+="    <name>$2</name>\n"
STRING+="    <default>true</default>\n"
STRING+="    <packagelist>\n"

i=0
size=${#array[@]} #the number of packages

while [ $i -lt $size ]
do

STRING+="      <packagereq type=\"default\">"${array[$i]}"</packagereq>\n"
i=`expr $i + 1`

done


STRING+="    </packagelist>\n"
STRING+="  </group>\n"

echo -ne $STRING > create.xml

exit 0