sed - shell script: replace the contents -

i have file following contents

filename:versioninfo.properties

installed version:13.7.0-2 previous version:13.6.0-12 

filename: main.sh

#!/bin/ksh new_maj_version=$1 # sample content: 13.7.0 new_min_version=$2 # sample content: 4 

every time run main.sh want edit versioninfo.properties file. installed version should shift previous version , new_maj_version , new_min_version placed in installed version. how can achieve it?

sample output after running main.sh

filename:versioninfo.properties

installed version:13.7.0-4 previous version:13.7.0-2 

try this: (save main.sh):

#!/bin/ksh awk -f: -v a="$1" -v i="$2" 'nr==1{n=$2;print $1":"a"-"i;next}{print $1":"n}'  /versioninfo.properties > /tmp/tmpversion && mv /tmp/tmpversion versioninfo.properties 

try with

main.sh "13.7.0" "4"