Example

curl -K file
# read configuration from file
curl --config file
$HOME/.curlrc # default configuration file on UNIX-like systems

$ curl -s http://url/myscript.sh

$ curl -o file http://url/file
$ curl --output file http://url/file

$ curl -I url
# display header information

$ curl -o file http://url/file
$ curl --output file http://url/file

$ curl --user username:password http://example.com/
$ curl -u username:password http://example.com/

$ curl http://url/file > file

curl "https://{foo,bar}.com/file\_[1-4].webp" --output "#1\_#2.webp"

Download a series of files (output foo_file1.webp, foo_file2.webp...bar_file1_webp, etc.)

curl "https://www.{example,w3,iana}.org/index.html" --output "file\_#1.html"

curl --remote-name --continue-at -"https://example.com/linux-distro.iso"

curl --remote-name "https://example.com/linux-distro.iso"

rename file

curl --remote-name "http://example.com/index.html" --output foo.html

curl https://example.com | \
grep --only-matching 'src="[^"]\*.[png]"' | \
cut -d \" -f2 | \
while read i; do curl https://example.com/"${i}" \
-o "${i##\*/}"; done

Download all PNG files from the site (using GNU grep)

curl -o /dev/null --silent -Iw "%{http\_code}" https://example.com/my.remote.tarball.gz

curl -s -w \
'\nLookup time:\t%{time_namelookup}\nConnect time:\t%{time_connect}\nAppCon time:\t%{time_appconnect}\nRedirect time:\t%{time_redirect}\nPreXfer time:\t%{time_pretransfer }\nStartXfer time:\t%{time_starttransfer}\n\nTotal time:\t%{time_total}\n' \
     -o /dev/null https://www.google.com

curl -sSL https://get.rvm.io | bash

$ curl -XGET http://${elasticsearch\_ip}:9200/_cluster/nodes | python -m json.tool

$ curl -v --include \
--form key1=value1 \
    --form upload=@localfilename URL