Broken Packages List

I've tried a lot of commands to fix my broken packages! With no luck. I only have 1 question. How do I get the list of broken packages? sudo dpkg -l | grep ^..r That command does not work! Is there a new command for Ubuntu 20.04?

Update commands ran. cougarxr7@gonespy:~/Desktop$ sudo apt-get check sudo: /etc/sudoers.d is world writable [sudo] password for cougarxr7: Reading package lists... Done Building dependency tree
Reading state information... Done cougarxr7@gonespy:~/Desktop$ sudo apt-get install aptitude sudo: /etc/sudoers.d is world writable Reading package lists... Done Building dependency tree
Reading state information... Done E: Unable to locate package aptitude cougarxr7@gonespy:~/Desktop$ aptitude search "?broken

^C cougarxr7@gonespy:~/Desktop$ sudo apt-get install --fix-broken sudo: /etc/sudoers.d is world writable Reading package lists... Done Building dependency tree
Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. cougarxr7@gonespy:~/Desktop$ sudo apt-get install steam sudo: /etc/sudoers.d is world writable Reading package lists... Done Building dependency tree
Reading state information... Done Package steam is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source However the following packages replace it: steam-devices

E: Package 'steam' has no installation candidate cougarxr7@gonespy:~/Desktop$ sudo apt-get install --fix-missing sudo: /etc/sudoers.d is world writable Reading package lists... Done Building dependency tree
Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. cougarxr7@gonespy:~/Desktop$ sudo apt-get install discord sudo: /etc/sudoers.d is world writable Reading package lists... Done Building dependency tree
Reading state information... Done

No apt package "discord", but there is a snap with that name. Try "snap install discord"

E: Unable to locate package discord cougarxr7@gonespy:~/Desktop$ snap install discord snap "discord" is already installed, see 'snap help refresh' cougarxr7@gonespy:~/Desktop$ snap help refresh Usage: snap refresh [refresh-OPTIONS] [...]

The refresh command updates the specified snaps, or all snaps in the system if none are specified.

With no further options, the snaps are refreshed to the current revision of the channel they're tracking, preserving their confinement options.

Revision choice via the --revision override requires the user to have developer access to the snap, either directly or through the store's collaboration feature, and to be logged in (see 'snap help login').

Note a later refresh will typically undo a revision override.

[refresh command options] --color=[auto|never|always] Use a little bit of color to highlight some things. (default: auto) --unicode=[auto|never|always] Use a little bit of Unicode to improve legibility. (default: auto) --abs-time Display absolute times (in RFC 3339 format). Otherwise, display relative times up to 60 days, then YYYY-MM-DD. --no-wait Do not wait for the operation to finish but just print the change id. --channel= Use this channel instead of stable --edge Install from the edge channel --beta Install from the beta channel --candidate Install from the candidate channel --stable Install from the stable channel --devmode Put snap in development mode and disable security confinement --jailmode Put snap in enforced confinement mode --classic Put snap in classic mode and disable security confinement --amend Allow refresh attempt on snap unknown to the store --revision= Refresh to the given revision, to which you must have developer access --cohort= Refresh the snap into the given cohort --leave-cohort Refresh the snap out of its cohort --list Show the new versions of snaps that would be updated with the next refresh --time Show auto refresh information but do not perform a refresh --ignore-validation Ignore validation by other snaps blocking the refresh cougarxr7@gonespy:~/Desktop$ aptitude search "?broken" cougarxr7@gonespy:~/Desktop$ aptitude search "?broken"

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1 Answer

To get the information about broken packages you have to execute one of the following commands:

• sudo apt-get check

  Its purpose is described in the man apt-get locally (or online):

  check
  check is a diagnostic tool; it updates the package cache and checks for broken dependencies.

• aptitude search "?broken"

  its purpose is described in /usr/share/doc/aptitude/html/en/ch02s04s05.html#searchBroken locally:

  Select packages that have a broken dependency.

To fix the broken packages you can start with sudo apt-get install --fix-broken

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