Questions[texlive](ubuntu)

I installed texlive on ubuntu 20.04 with:

sudo apt -y install texlive-latex-extra texlive-extra-utils texlive-font-utils

when trying to install a latex package (any) i got:

/usr/bin/tlmgr: unexpected return value from verify_checksum: -5

any ideas?

EDIT: Hello, i install packages with tlmgr install package_name. tlmgr installs when installing latex... Output of dpkg -S $(which tlmgr)

texlive-base: /usr/bin/tlmgr

Output of apt-cache policy texlive-base:

texlive-base:
  Installed: 2019.20200218-1
  Candidate: 2019.20200218-1
  Version table:
 *** 2019.20200218-1 500
        500 http://cl.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        500 http://cl.archive.ubuntu.com/ubuntu focal/universe i386 Packages
        100 /var/lib/dpkg/status

Output of tlmgr --version:

tlmgr revision 53568 (2020-01-27 19:20:16 +0100)
tlmgr using installation: /usr/share/texlive
TeX Live (http://tug.org/texlive) version 2019

I am used to using "pdfjoin", a small utility in older Debian-based distributions (8 and older). When I moved to Ubuntu 18.04, I realized that command is no longer available. Where did it go?

I'm trying to install xelatex using

sudo apt install texlive-xetex

but I'm getting these errors.

Err:1 http://in.archive.ubuntu.com/ubuntu bionic/main amd64 texlive-latex-base all 2017.20180305-1                                                                                                         
  403  Forbidden [IP: 103.123.234.254 80]
E: Failed to fetch http://in.archive.ubuntu.com/ubuntu/pool/main/t/texlive-base/texlive-latex-base_2017.20180305-1_all.deb  403  Forbidden [IP: 103.123.234.254 80]                                        
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

I have already tried running apt-get update and with --fix-missing flag but it didn't solve the issue.

Can somebody please tell me how to go about this. I'm a newbie ubuntu user.

Thanks!

I am trying to install texlive 2012. I am running Ubuntu 12.04. I followed the instructions here: How do I install the latest TeX Live 2012?

but I now get error messages such as "ulem.sty not found". What did I do wrong?

Using the terminal in Debian/Ubuntu, how does find the version of the system's TeX Live distribution? I don't have tlmgr so I would need to need to do this either through apt-get, aptitude, or some command that invokes the --version flag. Thanks.