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ssh access

cat ~/.ssh/id_rsa.pub | ssh root@HOST "cat >> ~/.ssh/authorized_keys"

Fix locales

* No PostgreSQL clusters exist; see "man pg_createcluster"

perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LC_PAPER = "uk_UA.UTF-8", LC_ADDRESS = "uk_UA.UTF-8", LC_MONETARY = "uk_UA.UTF-8", LC_NUMERIC = "uk_UA.UTF-8", LC_TELEPHONE = "uk_UA.UTF-8", LC_IDENTIFICATION = "uk_UA.UTF-8", LC_MEASUREMENT = "uk_UA.UTF-8", LC_TIME = "uk_UA.UTF-8", LC_NAME = "uk_UA.UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). Error: The locale requested by the environment is invalid.

export LANGUAGE=en_US.UTF-8 export LANG=en_US.UTF-8 export LC_ALL=en_US.UTF-8 locale-gen en_US.UTF-8 sudo dpkg-reconfigure locales

sudo pg_createcluster 9.3 main --start

How to remove remote branch

git push origin :remote_branch

Remove item from array in javascript

var arr = [{a: 1}, {b: 2}, {c: 3}];

arr.splice(0, 1); # <= [{b: 2}, {c: 3}];

#javascript

add ssh-key to remote host

ssh-copy-id -i ~/.ssh/id_rsa.pub remote-host

Colorize git status

git config --global color.ui auto