sed replace content within double quotes

Question

I need to replace the versionName in a xml file from a shell script using sed.

Answer 1

sed 's/\([[:blank:]]android:versionName="\)[^"]*"/\1Your New Value"/' YourFile

• assuming that all section that have android:versionName will be changed
• with GNU sed still better with replacing [[:blan:k]] by \(^\|[[:blank:]]\) (and a -i if direct modification avoiding temporary file)