less pressing Shift-F takes to the end of the file, and continuously display new contents. Is there any option (with any *nix tool) to continuously display new content which contains a given string (e.g. look for a word
As @Fedor Dikarev pointed out in comments
tail -f /var/log/program.log | grep error allows for that. However, is there any option to look for a string and have a possibility to change word to be searched for?
grep won't allow for that.