curl command HowTo - Linux / Unix Q & A from nixCraft

How to install curl command on a Ubuntu Linux

in Linux, Package Management, Ubuntu Linux last updated October 20, 2017

I am a new Ubuntu Linux user. I switched from Apple MacOS/Macbook and I trying to run the curl command from a shell script but getting the following error:
bash: curl: command not found
How do I fix this on a Ubuntu Linux version 17.10/16.04 LTS?

How to use the cURL command to do a POST data to fields on Linux or Unix

in BASH Shell, CentOS, Debian / Ubuntu, FreeBSD, Linux, RedHat and Friends, Suse, UNIX last updated May 28, 2017

How do I use the cURL command on Linux or Unix to post data i.e. upload something on Linux or Unix? How do I make a POST request with the cURL Linux command-line to upload file?

How to ignore invalid and self singed ssl connection errors with curl command

in BASH Shell, CentOS, Debian / Ubuntu, FreeBSD, Linux, RedHat and Friends, Suse, UNIX last updated January 24, 2017

I wanted to curl command to ignore SSL certification warning. Does curl command have a --no-check-certificate option like wget command on Linux or Unix-like system?

How to use curl command with http/2 on MacOS X

in BASH Shell, Mac OS X, Package Management, Troubleshooting, UNIX last updated November 1, 2016

I am using a MacOS sierra (version 10.12.1). How do I use curl command with http2/ protocol? I am getting an error that read as follows:

How to use curl command with proxy username/password on Linux/ Unix

in BASH Shell, FreeBSD, Linux, Mac OS X, UNIX last updated December 26, 2017

My sysadmin provided me the following proxy details:
       IP: 202.54.1.1
       Port: 3128
       Username: foo
       Password: bar
The settings worked perfectly with Google Chrome and Firefox browser. How do I use it with the curl command? How do I tell the curl command to use my proxy settings from Google Chrome browser?

How to install curl on Debian Linux 9/8

in Debian / Ubuntu, Linux, Package Management last updated October 3, 2017

I am a new Debian Linux 9 user. I switched from Windows server and I trying to run the curl command from a shell script but getting the following error:
bash: curl: command not found
How do I fix this on a Debian Linux version 9?

curl Command Resume Broken Download

in Commands, Linux, Networking, UNIX last updated August 7, 2017

I know wget can resume a failed download. I am on a Mac OS X and do now want to install wget command. How can I resume a failed download using curl command on Linux or Unix-like systems?