henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Mpdreamz

#!/bin/bash

# This scripts scans the elasticsearch source code for all the registered REST endpoints 
# It will put the formatted output in $DEFINITIONOUTPUTFILE 
# [MethodName] [HttpVerb] [Route]

ESFOLDER="../elasticsearch"
DEFINITIONOUTPUTFILE="src/Generated/rest-actions.txt"

# Find all the lines that registerHandlers

aleskiontherun

rrdtool lastupdate /path/to.rrd | sed ':a;N;$!ba;s/.*: \([0-9]*\)/\1/g'

t-mart

Map	Action
<F1>	Causes Netrw to issue help
<cr>	Netrw will enter the directory or read the file
<del>	Netrw will attempt to remove the file/directory
-	Makes Netrw go up one directory
a	Toggles between normal display, hiding (suppress display of files matching g:netrw_list_hide) showing (display only files which match g:netrw_list_hide)
c	Make browsing directory the current directory
C	Setting the editing window
d	Make a directory

mhipo1364

Re-Generate Migration

To merge exist migration files into one file:

• Remove django_migration records table (manually)
• Remove all migration files
• run python manage.py migrate --fake command
• run python manage.py makemigrations command
• run python manage.py migrate --fake-initial command
• run python manage.py migrate contenttypes command

nepsilon

Auto-backup your configuration files with Vim

Not using versioning on your configuration files and editing them with Vim?

Use Vim’s backup option to automatically keep a copy of past versions. To put in your ~/.vimrc:

"Turn on backup option
set backup

AtulKsol

psql: FATAL: Peer authentication failed for user “postgres” (or any user)

The connection failed because by default psql connects over UNIX sockets using peer authentication, that requires the current UNIX user to have the same user name as psql. So you will have to create the UNIX user postgres and then login as postgres or use sudo -u postgres psql database-name for accessing the database (and psql should not ask for a password).

If you cannot or do not want to create the UNIX user, like if you just want to connect to your database for ad hoc queries, forcing a socket connection using psql --host=localhost --dbname=database-name --username=postgres (as pointed out by @meyerson answer) will solve your immediate problem.

But if you intend to force password authentication over Unix sockets instead of the peer method, try changing the following pg_hba.conf* line:

from

hereismari

My favorites

Help

:help - main help portal (with links to more help pages)
:viusage - show a huge cheat sheet listing every command

Edit

0 - (zero) start of line

nash403

# Show proxy settings
function proxy_show(){
   env | grep -e _PROXY -e _proxy | sort
}

# Configure proxy
function proxy_on(){
   # You may need to hardcode your password, proxy server, and proxy port
   # if the following variables do not exist
   export HTTP_PROXY="http://$USERNAME:$PASSWORD@$PROXY_SERVER:$PROXY_PORT"