bluvertigo
11/13/2013 - 7:57 PM

bash wget - check if file exists at url before downloading

bash wget - check if file exists at url before downloading

validate.sh
content_copyfile_download
#!/bin/bash

# simple function to check http response code before downloading a remote file
# example usage:
# if `validate_url $url >/dev/null`; then dosomething; else echo "does not exist"; fi


function validate_url(){
  if [[ `wget -S --spider $1  2>&1 | grep 'HTTP/1.1 200 OK'` ]]; then echo "true"; fi
}