sed + remove string only in the last line of the file

Question

hi all

I use the following sed command to remove the "line number" string from file

      sed -i s'/line number//g' file

but what I need to change in sed syntax in order to remove the "line number" only if it exist in the last line of the file?

Lidia

Answer 1

I'm not sure I fully understand your question, however this can help you :

sed -i '$ s/line number//g' file

This will perform substitution only on last line (because of $), replacing line number by nothing.

man sed, section Addresses can help you understand how to apply sed commands on part of the text.