Unable to install wine E:Malformed line 53 in source list /etc/apt/sources.list (dist

[lintoleomathew]

I am getting the entry 53 error. please help me to solve this. i am using Lubuntu 18.04 Bionic


while running
sudo apt-get -f install

E: Malformed entry 53 in list file /etc/apt/sources.list (URI parse)
E: The list of sources could not be read.
E: Malformed entry 53 in list file /etc/apt/sources.list (URI parse)
E: The list of sources could not be read.




while running

cat -n /etc/apt/sources.list


     1    # deb cdrom:[Lubuntu 16.04.1 LTS _Xenial Xerus_ - Release i386 (20160720)]/ xenial main multiverse restricted universe
     2    
     3    # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
     4    # newer versions of the distribution.
     5    deb http://in.archive.ubuntu.com/ubuntu/ bionic main restricted
     6    # deb-src http://in.archive.ubuntu.com/ubuntu/ xenial main restricted
     7    
     8    ## Major bug fix updates produced after the final release of the
     9    ## distribution.
    10    deb http://in.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
    11    # deb-src http://in.archive.ubuntu.com/ubuntu/ xenial-updates main restricted
    12    
    13    ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
    14    ## team, and may not be under a free licence. Please satisfy yourself as to
    15    ## your rights to use the software. Also, please note that software in
    16    ## universe WILL NOT receive any review or updates from the Ubuntu security
    17    ## team.
    18    deb http://in.archive.ubuntu.com/ubuntu/ bionic universe
    19    # deb-src http://in.archive.ubuntu.com/ubuntu/ xenial universe
    20    deb http://in.archive.ubuntu.com/ubuntu/ bionic-updates universe
    21    # deb-src http://in.archive.ubuntu.com/ubuntu/ xenial-updates universe
    22    
    23    ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
    24    ## team, and may not be under a free licence. Please satisfy yourself as to 
    25    ## your rights to use the software. Also, please note that software in 
    26    ## multiverse WILL NOT receive any review or updates from the Ubuntu
    27    ## security team.
    28    deb http://in.archive.ubuntu.com/ubuntu/ bionic multiverse
    29    # deb-src http://in.archive.ubuntu.com/ubuntu/ xenial multiverse
    30    deb http://in.archive.ubuntu.com/ubuntu/ bionic-updates multiverse
    31    # deb-src http://in.archive.ubuntu.com/ubuntu/ xenial-updates multiverse
    32    
    33    ## N.B. software from this repository may not have been tested as
    34    ## extensively as that contained in the main release, although it includes
    35    ## newer versions of some applications which may provide useful features.
    36    ## Also, please note that software in backports WILL NOT receive any review
    37    ## or updates from the Ubuntu security team.
    38    # deb-src http://in.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
    39    
    40    ## Uncomment the following two lines to add software from Canonical's
    41    ## 'partner' repository.
    42    ## This software is not part of Ubuntu, but is offered by Canonical and the
    43    ## respective vendors as a service to Ubuntu users.
    44    # deb http://archive.canonical.com/ubuntu xenial partner
    45    # deb-src http://archive.canonical.com/ubuntu xenial partner
    46    
    47    deb http://security.ubuntu.com/ubuntu bionic-security main restricted
    48    # deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted
    49    deb http://security.ubuntu.com/ubuntu bionic-security universe
    50    # deb-src http://security.ubuntu.com/ubuntu xenial-security universe
    51    deb http://security.ubuntu.com/ubuntu bionic-security multiverse
    52    # deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse
    53    deb sudo add-apt-repository sudo add-apt-repository deb
    54    # deb-src sudo add-apt-repository sudo add-apt-repository deb

[CatKiller]

You can see that you've randomly added commands to the file rather than the entries that should be there.

[ActionParsnip]

Delete line 53. It's a shell command (ish) and not a valid entry in sources.list

[lintoleomathew]

Sir, i am a newbie in ubuntu..Could you please detail your reply. Thanks for the reply

[overdrank]

Hi and welcome, this link may help
https://help.ubuntu.com/community/Re...es/CommandLine

[howefield]

In your terminal use...

sudo nano /etc/apt/sources.list

Scroll down to the two lines (as per your output above) and remove them. Then Ctrl + o , press enter and then Ctrl + x to finish.

You could make a copy of the file before doing this so you can get back to your starting point lest you make the situation worse.

sudo cp /etc/apt/sources.list /etc/apt/sources.list.old

[Holger_Gehrke]

The last two lines of the sources.list file look like you tried to follow some tutorial on how to install some program from an unusual source and got the instructions mixed up.

Open the file in an editor and delete those lines. Since /etc/apt/sources.list is a system configuration file, only the system administrator (called 'root' on unix-like systems) can write to that file. To become root for one command you use 'sudo' (switch user and do) on the command line followed by the command to execute as root. For editing a file as root there's a specialized (and safer) tool called 'sudoedit'.

Enter 'sudoedit /etc/apt/sources.list' in a terminal. You will be asked for your password. Enter it. You will not see any feedback during typing, that's normal, it's a security measure to prevent people watching you enter the password finding out the length of your pw. An editor will open, probably 'nano' if you haven't configured sudoedit to use another editor. Go to the end of the file and remove the last two lines. Save the file (ctrl-o in nano) and exit the editor (ctrl-x in nano). Done.

Holger

[ActionParsnip]

Could use:

sudo cp /etc/apt/sources.list /etc/apt/sources.list-2020-06-30
sudo sed -i '53d' /etc/apt/sources.list > /tmp/sources.list
cat /tmp/sources.list | sudo tee /etc/apt/sources.list > /dev/null
sudo apt-get update

You can roll back with

cat /etc/apt/sources.list-2020-06-30 | sudo tee /etc/apt/sources.list > /dev/null
sudo apt-get update