gopal@gopal-desktop:~$ sudo apt update
Hit:1 http://in.archive.ubuntu.com/ubuntu zesty InRelease                      
Get:2 http://security.ubuntu.com/ubuntu zesty-security InRelease [89.2 kB]     
Get:3 http://in.archive.ubuntu.com/ubuntu zesty-updates InRelease [89.2 kB]    
Get:4 http://in.archive.ubuntu.com/ubuntu zesty-backports InRelease [89.2 kB]  
Get:5 http://security.ubuntu.com/ubuntu zesty-security/main amd64 DEP-11 Metadata [12.5 kB]
Get:6 http://in.archive.ubuntu.com/ubuntu zesty-updates/main amd64 DEP-11 Metadata [52.6 kB]
Get:7 http://in.archive.ubuntu.com/ubuntu zesty-updates/main DEP-11 64x64 Icons [26.3 kB]
Get:8 http://in.archive.ubuntu.com/ubuntu zesty-updates/universe amd64 DEP-11 Metadata [171 kB]
Get:9 http://security.ubuntu.com/ubuntu zesty-security/universe amd64 DEP-11 Metadata [20.7 kB]
Get:10 http://security.ubuntu.com/ubuntu zesty-security/universe DEP-11 64x64 Icons [36.5 kB]
Get:11 http://in.archive.ubuntu.com/ubuntu zesty-updates/universe DEP-11 64x64 Icons [225 kB]
Get:12 http://security.ubuntu.com/ubuntu zesty-security/multiverse amd64 DEP-11 Metadata [208 B]
Get:13 http://in.archive.ubuntu.com/ubuntu zesty-updates/multiverse amd64 DEP-11 Metadata [5,840 B]
Get:14 http://in.archive.ubuntu.com/ubuntu zesty-backports/universe amd64 DEP-11 Metadata [5,140 B]
Fetched 824 kB in 3s (249 kB/s)                                               
Reading package lists... Done
Building dependency tree       
Reading state information... Done
3 packages can be upgraded. Run 'apt list --upgradable' to see them.