regex - Remove part of url and keep the rest using sed

Question

Need to remove some part of the url and keep the remaining part same . Below is the part of my text file which contains like this

{
  host = "http://nxt-newepisode.xcfm.crata.dive.com/err1.2.2/table/kenny.xml.gz"

}

{
  host = "http://nxt-secondepisode.xcfm.crata.dive.com/err1.2.2/table/kenny.xml.gz"
}

from above two urls i want get rid off nxt- and keep the rest . I know using

sed -i 's/nxt-//g' FILE

can solve the issue but i want to be specific and only remove nxt- for first url and nxt- from second url without making changes to rest of file.

I am trying this

sed -i '/host/s#"http://nxt-newepisode.*"#" "#' FILE

Answer 1

Could you please try following.

awk '/host/ && ++count==1{sub(/nxt-/,"")} 1' Input_file

Once you are happy with results then to save output into Input_file use following:

awk '/host/ && ++count==1{sub(/nxt-/,"")} 1' Input_file > temp && mv temp Input_file