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How do you echo a 4-digit Unicode character in Bash?
I'd like to add the Unicode skull and crossbones to my shell prompt (specifically the 'SKULL AND CROSSBONES' (U+2620)), but I can't figure out the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", .
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Postgresql: password authentication failed for user “postgres”
I have installed PostgreSQL 8.4, Postgres client and Pgadmin 3. Authentication failed for user "postgres" for both console client and Pgadmin. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times withou...
Get Visual Studio to run a T4 Template on every build
...red Jun 14 '10 at 21:31
Seth RenoSeth Reno
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How to create a CPU spike with a bash command
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You can also do
dd if=/dev/zero of=/dev/null
To run more of those to put load on more cores, try to fork it:
fulload() { dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null & }; fulload; read; killall dd
Repea...
Postgres - FATAL: database files are incompatible with server
...raded to 11 or 12 from 10.x you can run the below command to upgrade your postgres data directory retaining all data:
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
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How do I display the current value of an Android Preference in the Preference summary?
...setting the summaries of all preferences of the types you desire to their toString representation
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Save Screen (program) output to a file
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related: Is it possible to name the screen logfile from the L flag?
– lepe
Jun 1 '16 at 3:44
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Linking R and Julia?
...(). But as recently discussed on r-devel, you really do not want .C(), in most cases you rather want .Call() in order to pass actual SEXP variables representing real R objects. So right now I see little scope for Julia from R because of this limitation.
Maybe an indirect interface using tcp/ip to ...
How to install CocoaPods?
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Gem will get installed in Ruby inside System library. Or try on 10.11 Mac OSX El Capitan, type:
sudo gem install -n /usr/local/bin cocoapods
If there is an error "activesupport requires Ruby version >= 2.xx", then install latest activesupport first by typing in terminal.
sudo gem install act...
How to remove focus around buttons on click
...g the button focus style worked for me. This problem may be specific to MacOS with Chrome.
.btn:focus {
outline: none;
box-shadow: none;
}
Note though that this has implications for accessibility and isn't advised until you have a good consistent focus state for your buttons and inputs. As pe...