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Parse URL in bash script
#!/bin/bash
#SOURCE: https://janikvonrotz.ch/2021/03/09/parse-url-in-shell-script/
set -e
# Get script name
SCRIPT=$(basename "$0")
# Display Help
Help() {
echo
echo "$SCRIPT"
echo
echo "Description: Filter url for segments."
echo "Syntax: $SCRIPT <url> [url|proto|user|pass|host|domain|subdomain|port|path]"
echo "Example: $SCRIPT https://www.example.com subdomain,domain"
echo
}
# Show help and exit
if [[ $1 == 'help' ]]; then
Help
exit
fi
# check params
[[ -z "$2" ]] && { echo "Parameter filter is empty." ; exit 1; }
# get protocol
proto="$(echo $1 | grep :// | sed -e's,^\(.*://\).*,\1,g')"
# remove the protocol
url="$(echo ${1/$proto/})"
# extract the user (if any)
userpass="$(echo $url | grep @ | cut -d@ -f1)"
pass="$(echo $userpass | grep : | cut -d: -f2)"
if [ -n "$pass" ]; then
user="$(echo $userpass | grep : | cut -d: -f1)"
else
user=$userpass
fi
# extract the host
host="$(echo ${url/$user@/} | cut -d/ -f1)"
# by request - try to extract the port
port="$(echo $host | sed -e 's,^.*:,:,g' -e 's,.*:\([0-9]*\).*,\1,g' -e 's,[^0-9],,g')"
# extract the path (if any)
path="$(echo $url | grep / | cut -d/ -f2-)"
# extract domain and subdomain
levels=$(echo $host | grep -o "\." | wc -l)
if [ $levels -eq "1" ]; then
domain=$host
fi
if [ $levels -eq "2" ]; then
domain=$(echo $host | awk -F"." '{print $2 "." $3}')
subdomain=$(echo $host | awk -F"." '{print $1}')
fi
for f in $(echo $2 | sed "s/,/ /g")
do
case $f in
url)
echo $url
;;
proto)
echo $proto
;;
user)
echo $user
;;
pass)
echo $pass
;;
host)
echo $host
;;
domain)
echo $domain
;;
subdomain)
echo $subdomain
;;
port)
echo $port
;;
path)
echo $path
;;
esac
done
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