I am a new user and working on NS2 for my masters project, need guidance! I have used these commands to install gawk in NS2
sudo apt-get update
sudo apt-get install gawk
but I am facing an issue while installing gawk have a look.
ak@ubuntu:~$ sudo apt-get install gawk
Reading package lists... Done
Building dependency tree
Reading state information... Done
Suggested packages:
gawk-doc
The following NEW packages will be installed:
gawk
0 upgraded, 1 newly installed, 0 to remove and 48 not upgraded.
Need to get 418 kB of archives.
After this operation, 1,708 kB of additional disk space will be used.
Err:1 http://us.archive.ubuntu.com/ubuntu focal/main amd64 gawk amd64 1:5.0.1+dfsg-1
Temporary failure resolving 'us.archive.ubuntu.com'
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/g/gawk/gawk_5.0.1+dfsg-1_amd64.deb Temporary failure resolving 'us.archive.ubuntu.com'
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?