移除 url 的一部分并使用 sed 保留 rest

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