E: Type 'echo' is not known on the line 55 in source list /etc/apt/sources.list
249
How do I fix this "E: Type '*' is not known on line * in source list ..." update error?
59119
apt-get, unmet dependencies, ... "but it is not going to be installed"
12960
How to fix "not a valid identifier" error after setting environment variables?
74763
Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution)
151656
Installing from source. How to resolve dependencies without destroying the package manager
98792
How to fix compilation errors that mention "stray ‘\342’" and "stray ‘\200’"?
66401
E: Type 'sudo' is not known on line 1 in source list /etc/apt/sources.list.d/mono-xamarin.list
149595
Can I enable bash-completion for the new apt command?
38529
How do I get help for "echo" or other bash commands?
21062
dpkg: error: parsing file '/var/lib/dpkg/available' near line 0
118661
How to solve apt "package cannot be configured because package is in a different version" errors?
98682
How to fix ~/.profile and ~/.bashrc syntax errors
61177
How to set up an APT repository?
118301
What is the reason for "X is not recognized as an internal or external command, operable program or batch file"?
12773
The requested package is unknown
54738
I can't find file `pgfutil-common-lists.tex'
18926
Type 'sudo' is not known in source list