Curl

• Similar to wget
• Mostly used for REST request

curl example.com

--request (-X)

• By default GET is used

curl https://httpbin.org/get -X GET

--data (-d)

# json
curl https://httpbin.org/post \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"key": "value"}'

# url-encoded
curl https://wordpress.com/wp.login.php \
  --data "log=admin&pwd=password"

# from file
curl https://httpbin.org/post \
  --request POST \
  --header "Content-Type: application/json" \
  --data @search.json

--header (-H)

• Add headers to the request

curl https://httpbin.org/post \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"key": "value"}'

--silent (-s)

• Silent mode

curl -s https://httpbin.org/get

--remote-name (-O)

• Save file with its original filename

curl http://mirror.bytemark.co.uk/ubuntu-releases/18.04.4/ubuntu-18.04.4-desktop-amd64.iso -O

--output (-o)

• Save file with a provided filename

curl example.com -o example.html

--head (-I)

• Show response headers only

curl -I example.com

--list-only (-l)

• Saves the redirected page
• The http page is redirecting to the https page, so nothing is displayed

curl -l example.com

--location (-L)

• Follow redirects

curl -L https://deb.nodesource.com/setup_14.x | bash -

--verbose (-v)

• TLS handshake - Additional information regarding the connection

curl -v <url>