How to install curl on Debian Linux 10/9/8

I am a new Debian Linux 10 or 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 10 or 9/8?

curl command is a tool to download or transfer files/data from or to a server using FTP, HTTP, HTTPS, SCP, SFTP, SMB and other supported protocols on Linux or Unix-like system.
One can easily install and use the curl command on a Debian Linux using the apt command or apt-get command to use the curl. This page shows how to install curl on Debian Linux version 10/9/8.

Installing Curl on Debian

  1. Open the terminal application
  2. Update system, run: sudo apt update && sudo apt upgrade
  3. Install curl on Debian, execute: sudo apt install curl
  4. Test curl

Let us see how to install and use curl on Debian.

How to install curl on Debian Linux 10/9/8

Type the following command to install curl on Debian Linux:
$ sudo apt install curl
$ sudo apt-get install curl
Sample outputs:

[sudo] password for vivek: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
The following NEW packages will be installed:
  curl libcurl3
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 518 kB of archives.
After this operation, 989 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 stretch/main amd64 libcurl3 amd64 7.52.1-5 [291 kB]
Get:2 stretch/main amd64 curl amd64 7.52.1-5 [227 kB]
Fetched 518 kB in 4s (116 kB/s)
Selecting previously unselected package libcurl3:amd64.
(Reading database ... 240584 files and directories currently installed.)
Preparing to unpack .../libcurl3_7.52.1-5_amd64.deb ...
Unpacking libcurl3:amd64 (7.52.1-5) ...
Selecting previously unselected package curl.
Preparing to unpack .../curl_7.52.1-5_amd64.deb ...
Unpacking curl (7.52.1-5) ...
Setting up libcurl3:amd64 (7.52.1-5) ...
Processing triggers for libc-bin (2.24-11+deb9u1) ...
Processing triggers for man-db ( ...
Setting up curl (7.52.1-5) ...

Displaying curl version

For verification purpose type:
curl --version
You will see:

curl 7.68.0 (x86_64-pc-linux-gnu) libcurl/7.68.0 OpenSSL/1.1.1f zlib/1.2.11 brotli/1.0.7 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.2.0) libssh/0.9.3/openssl/zlib nghttp2/1.40.0 librtmp/2.3
Release-Date: 2020-01-08
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftp 
Features: AsynchDNS brotli GSS-API HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM NTLM_WB PSL SPNEGO SSL TLS-SRP UnixSockets

It seems I am using curl version 7.68.0.


Once installed the curl, you can use it as follows to see the headers for given domain:
$ curl -I
$ curl -I

Headers for my blog:

HTTP/2 200 
server: nginx
date: Tue, 03 Oct 2017 05:24:03 GMT
content-type: text/html;charset=utf-8
vary: Accept-Encoding
cache-control: public,max-age=14400,s-maxage=14400,must-revalidate
expires: Tue, 03 Oct 2017 09:14:57 GMT
etag: d01116f2eda45a43e65b0242ed052e73
last-modified: Sat, 23 Sep 2017 17:37:16 GMT
strict-transport-security: max-age=15768000
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1
x-whome: l-cbz01

We can download a file from a server using curl itself:
curl -o output.file
You can resume broken download with the curl command as follows:
curl -L -O -C -

Getting more help on curl

Type the following man command:
man curl
curl --help


See also:

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🐧 3 comments so far... add one

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3 comments… add one
  • Tony A Feb 2, 2016 @ 12:57

    Thankn you very much. I install it on Debian 8.

  • Abdelalim Jan 2, 2021 @ 14:45

    Thank you for this article.

  • Marian Mar 20, 2021 @ 10:33

    I love helpful pages like this. thank you.

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