Bonno

#!/bin/bash
while read LINE; do
  curl -o /dev/null --silent --head --write-out '%{http_code}' "$LINE"
  echo " $LINE"
done < url-list.txt

Bonno

curl -sSL -o /dev/null -D - http://domain.com
-S, --show-error        Show an error message if it fails
-L/--location           If the server reports that the requested page has moved to a different location (indicated with a Location: header and a 3XX response
      code), this option will make curl redo the request on the new place.
-o, --output FILE       Write output to <file> instead of stdout
-D, --dump-header FILE  Write the headers to this file


curl -v -o - -D - http://domain.com

Bonno

wget www.whatever.com/folder/{1..30}.html

Bonno

/bin/ls * | awk '{ printf("mv "$0" ")} {gsub(/_/,"."); print $0 }' | bash