simbalinux’s gists

simbalinux / append_to_config

Created June 25, 2018 15:24

Appending a string to an existing configuration file

	global_entry="
	global
	log 127.0.0.1 local0
	log 127.0.0.1 local1 debug
	maxconn 45000 # Total Max Connections.
	daemon
	nbproc 1 # Number of processing cores."
	echo "$global_entry"
	file=tester
	grep -qF "$global_entry" "$file" \|\| echo "$global_entry" \| sudo tee --append "$file"

simbalinux / append_w_sed

Created June 15, 2018 15:34

append after a line in a file

	#!/bin/bash
	sed -i '/ServerName web2.example.com:443/a CustomLog /var/log/httpd/example.com/logs/web2.example.com-access.log combined' ssl.conf

simbalinux / check_if_installed

Last active June 14, 2018 15:44

check_if_installed

	#!/usr/bin/bash

	if [ $(command -v httpd) ]; then echo 'installed'; else echo 'not installed'; fi

	# or

	if [ $(which httpd) ]; then echo 'installed'; else echo 'not installed'; fi

simbalinux / append_hostsfile

Last active June 14, 2018 15:45

append /etc/hosts

	#!/usr/bin/bash

	grep -q -F '192.168.49.10 web1.example.com web1' /etc/hosts \|\| echo '192.168.49.10 web1.example.com web1' >> /etc/hosts

simbalinux / insert only once

Last active June 14, 2018 05:27

insert only once

grep -q -F 'include "/configs/projectname.conf"' foo.bar || echo 'include "/configs/projectname.conf"' >> foo.bar

simbalinux / strap_lamp7_ssl

Last active June 13, 2018 21:40

Centos 7 LAMP

simbalinux / ssh_agent

Created February 22, 2018 20:27

ssh agent

	#!/bin/bash
	#Invoke this once, run again after a restart of the system.
	set -x
	SSH_ENV=$HOME/.ssh/environment
	function start_agent {
	echo "Initialising new SSH agent..."
	/usr/bin/ssh-agent \| sed 's/^echo/#echo/' > ${SSH_ENV}
	echo succeeded
	chmod 600 ${SSH_ENV}
	. ${SSH_ENV} > /dev/null

simbalinux / selinux disable

Created February 22, 2018 19:56

disabling selinux before and after reboot

	#disable selinux on next reboot
	sed -i 's/enforcing/disabled/g' /etc/selinux/config /etc/selinux/config
	sestatus
	#put in permissive mode
	setenforce 0

simbalinux / loadnewarray.php

Created February 22, 2018 19:00

push last x lines of open file to new array

	<?php
	$lines=array();
	$fp = fopen("../log/simplelogger.log", "r");

	//tail off last x lines of the log file
	while(!feof($fp))
	{
	$line = fgets($fp);
	array_push($lines, $line);
	if (count($lines)>10)

simbalinux / searchstring2.php

Created February 22, 2018 18:55

search for host in string 2 PHP

	<?php
	//simulating the array from string:
	$s = '
	[2018-02-19 14:08:32] [info] status=GOOD&unit_status=GOOD&hostname=acme
	[2018-02-19 14:08:32] [alert] Wrong status! (Not "DEGRADED")
	[2018-02-19 14:08:37] [info] Request with params {"status":"GOOD","unit_status":"GOOD","hostname":"joe"}
	[2018-02-19 14:08:37] [info] status=GOOD&unit_status=GOOD&hostname=joe
	[2018-02-19 14:08:37] [alert] Wrong status! (Not "DEGRADED")
	';