Assignment | |
---|---|
Assign value to variable if variable is not already set, value is returned.Combine with a : no-op to discard/ignore return value . |
${variable="value"} : ${variable="value"} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash | |
#### Source : https://vincent.composieux.fr/article/install-configure-and-automatically-renew-let-s-encrypt-ssl-certificate | |
WEB_SERVICE='nginx' | |
CONFIG_FILE='/usr/local/etc/le-yourdomain-webroot.ini' | |
LE_PATH='/opt/letsencrypt' | |
EXP_LIMIT=30; | |
if [ ! -f $CONFIG_FILE ]; then | |
echo "[ERROR] config file does not exist: $CONFIG_FILE" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/usr/bin/python | |
import sys | |
import re | |
import subprocess | |
if len(sys.argv) != 2: | |
print "bridge name needed" | |
sys.exit() |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash | |
# Interval of calculation in seconds | |
INTERVAL="1" | |
if [ -z "$1" ]; then | |
echo | |
echo usage: $0 [network-interface] | |
echo | |
echo e.g. $0 eth0 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# Hello, and welcome to makefile basics. | |
# | |
# You will learn why `make` is so great, and why, despite its "weird" syntax, | |
# it is actually a highly expressive, efficient, and powerful way to build | |
# programs. | |
# | |
# Once you're done here, go to | |
# http://www.gnu.org/software/make/manual/make.html | |
# to learn SOOOO much more. |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/sh | |
# extend non-HiDPI external display on DP* above HiDPI internal display eDP* | |
# see also https://wiki.archlinux.org/index.php/HiDPI | |
# you may run into https://bugs.freedesktop.org/show_bug.cgi?id=39949 | |
# https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/883319 | |
EXT=`xrandr --current | sed 's/^\(.*\) connected.*$/\1/p;d' | grep -v ^eDP | head -n 1` | |
INT=`xrandr --current | sed 's/^\(.*\) connected.*$/\1/p;d' | grep -v ^DP | head -n 1` | |
ext_w=`xrandr | sed 's/^'"${EXT}"' [^0-9]* \([0-9]\+\)x.*$/\1/p;d'` |
How to set up multiple accounts with Mutt E-mail Client
Thanks to this article by Christoph Berg
Directories and files
~/
PLEASE SCROLL DOWN AND READ THE COMMENTS FOR A MORE UP TO DATE WAY (AND EASIER) TO DO THIS
When using Homebrew (http://brew.sh) and searching formulas or pull requests you may get the dreaded error message: Github API Rate limit exceeded
Let's fix that! (yeah!)
PLEASE SCROLL DOWN AND READ THE COMMENTS FOR A MORE UP TO DATE WAY (AND EASIER) TO DO THIS
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<?xml version="1.0" encoding="UTF-8"?> | |
<persistence xmlns="http://java.sun.com/xml/ns/persistence" | |
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | |
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence | |
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" | |
version="1.0"> | |
<!-- derby --> |