Script started on 2022-02-02 17:35:20+00:00 [TERM="xterm-256color" TTY="/dev/pts/1" COLUMNS="185" LINES="73"]
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# ]0;root@lp1953610-focal: ~root@lp1953610-focal:~# dpkg -l | grep command-not-found
ii  command-not-found                20.04.5                               all          Suggest installation of packages in interactive bash sessions
ii  python3-commandnotfound          20.04.5                               all          Python 3 bindings for command-not-found.
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# ls -lah /var/lib/command-not-found/
total 3.2M
drwxr-xr-x 1 root root   62 Feb  2 17:35 .
drwxr-xr-x 1 root root  596 Jan 28 19:36 ..
-rw-r--r-- 1 root root 3.2M Feb  2 17:35 commands.db
-rw-r--r-- 1 root root 3.2K Feb  2 17:35 commands.db.metadata
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Test that cnf is working as unprivileged user
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# su - ubuntu
]0;ubuntu@lp1953610-focal: ~ubuntu@lp1953610-focal:~$ lck

Command 'lck' not found, did you mean:

  command 'ack' from deb ack (3.3.1-1)
  command 'ick' from deb intercal (30:0.30-3)
  command 'lcp' from deb lsh-client (2.1-12build3)
  command 'lc' from deb mono-devel (6.8.0.105+dfsg-2)
  command 'lcf' from deb ucf (3.0038+nmu1)
  command 'ck' from deb python3-ck (1.9.4-1.1)

Try: apt install <deb name>

]0;ubuntu@lp1953610-focal: ~ubuntu@lp1953610-focal:~$ ack

Command 'ack' not found, but can be installed with:

apt install ack
Please ask your administrator.

]0;ubuntu@lp1953610-focal: ~ubuntu@lp1953610-focal:~$ exit
logout
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Begin reproducer
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Confirm UMASK
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# grep "^UMASK" /etc/login.defs
UMASK		022
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Set /etc/login.defs to umask 027
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# sed -i -e 's/^UMASK\t\t022/UMASK\t\t027/' /etc/login.defs
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Confirm
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# grep "^UMASK" /etc/login.defs
UMASK		027
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Log out and back in
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# exit
exit

Script done on 2022-02-02 17:36:03+00:00 [COMMAND_EXIT_CODE="0"]
Script started on 2022-02-02 17:36:47+00:00 [TERM="xterm-256color" TTY="/dev/pts/1" COLUMNS="185" LINES="73"]
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Force rebuild of DB
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# rm -rf /var/lib/command-not-found/*
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# apt update

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Reading state information... Done

All packages are up to date.
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# ls -lah /var/lib/command-not-found/
total 3.2M
drwxr-xr-x 1 root root   62 Feb  2 17:37 .
drwxr-xr-x 1 root root  596 Jan 28 19:36 ..
-rw-r----- 1 root root 3.2M Feb  2 17:37 commands.db
-rw-r----- 1 root root 3.2K Feb  2 17:37 commands.db.metadata
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Verify failure
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# su - ubuntu
]0;ubuntu@lp1953610-focal: ~ubuntu@lp1953610-focal:~$ lck
Sorry, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/command-not-found/+filebug
Please include the following information with the report:

command-not-found version: 0.3
Python version: 3.8.10 final 0
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.3 LTS
Release:	20.04
Codename:	focal
Exception information:

unable to open database file
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/CommandNotFound/util.py", line 23, in crash_guard
    callback()
  File "/usr/lib/command-not-found", line 90, in main
    cnf = CommandNotFound.CommandNotFound(options.data_dir)
  File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 79, in __init__
    self.db = SqliteDatabase(dbpath)
  File "/usr/lib/python3/dist-packages/CommandNotFound/db/db.py", line 12, in __init__
    self.con = sqlite3.connect(filename)
sqlite3.OperationalError: unable to open database file
]0;ubuntu@lp1953610-focal: ~ubuntu@lp1953610-focal:~$ ack
Sorry, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/command-not-found/+filebug
Please include the following information with the report:

command-not-found version: 0.3
Python version: 3.8.10 final 0
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.3 LTS
Release:	20.04
Codename:	focal
Exception information:

unable to open database file
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/CommandNotFound/util.py", line 23, in crash_guard
    callback()
  File "/usr/lib/command-not-found", line 90, in main
    cnf = CommandNotFound.CommandNotFound(options.data_dir)
  File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 79, in __init__
    self.db = SqliteDatabase(dbpath)
  File "/usr/lib/python3/dist-packages/CommandNotFound/db/db.py", line 12, in __init__
    self.con = sqlite3.connect(filename)
sqlite3.OperationalError: unable to open database file
]0;ubuntu@lp1953610-focal: ~ubuntu@lp1953610-focal:~$ exit
logout
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Update to proposed package
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# add-apt-repository -y ppa:krenshaw/lp1953610

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Reading package lists... Done

]0;root@lp1953610-focal: ~root@lp1953610-focal:~# apt update

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2 packages can be upgraded. Run 'apt list --upgradable' to see them.
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# apt -y upgrade

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Calculating upgrade... Done

The following package was automatically installed and is no longer required:
  libfreetype6
Use 'apt autoremove' to remove it.
The following packages will be upgraded:
  command-not-found python3-commandnotfound
2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 33.7 kB of archives.
After this operation, 0 B of additional disk space will be used.

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(Reading database ... 44293 files and directories currently installed.)
Preparing to unpack .../command-not-found_20.04.5ubuntu2_all.deb ...
7Progress: [  0%] [...................................................................................................................................................................] 87Progress: [ 11%] [##################.................................................................................................................................................] 8Unpacking command-not-found (20.04.5ubuntu2) over (20.04.5) ...
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78]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Rebuild cnf db again
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# rm -rf /var/lib/command-not-found/*
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# apt update

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]0;root@lp1953610-focal: ~root@lp1953610-focal:~# ls -lah /var/lib/command-not-found/
total 3.2M
drwxr-xr-x 1 root root   62 Feb  2 17:37 .
drwxr-xr-x 1 root root  596 Jan 28 19:36 ..
-rw-r--r-- 1 root root 3.2M Feb  2 17:37 commands.db
-rw-r--r-- 1 root root 3.2K Feb  2 17:37 commands.db.metadata
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# # Verify successful cnf with more restrictive umask
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# su - ubuntu
]0;ubuntu@lp1953610-focal: ~ubuntu@lp1953610-focal:~$ lck

Command 'lck' not found, did you mean:

  command 'lcp' from deb lsh-client (2.1-12build3)
  command 'ack' from deb ack (3.3.1-1)
  command 'lc' from deb mono-devel (6.8.0.105+dfsg-2)
  command 'lcf' from deb ucf (3.0038+nmu1)
  command 'ck' from deb python3-ck (1.9.4-1.1)
  command 'ick' from deb intercal (30:0.30-3)

Try: apt install <deb name>

]0;ubuntu@lp1953610-focal: ~ubuntu@lp1953610-focal:~$ ack

Command 'ack' not found, but can be installed with:

apt install ack
Please ask your administrator.

]0;ubuntu@lp1953610-focal: ~ubuntu@lp1953610-focal:~$ exit
logout
]0;root@lp1953610-focal: ~root@lp1953610-focal:~# exit
exit

Script done on 2022-02-02 17:38:04+00:00 [COMMAND_EXIT_CODE="127"]