Balaji (xbalaji) V xbalaji

http://xbalaji.github.io/kural http://xbalaji.github.io/pub http://xbalaji.github.io/xbenv https://xlabsinc.github.io/pub/gist.html

xbalaji / clean-up-git-folder.sh

Last active September 16, 2018 19:55

clean up git folder


	# see: https://stackoverflow.com/questions/5613345/how-to-shrink-the-git-folder

	# good and safe command - from http://gcc.gnu.org/ml/gcc/2007-12/msg00165.html
	git repack -a -d --depth=250 --window=250

	# default options should be enough for most cases, see: https://git-scm.com/docs/git-repack
	git repack -a -d

	# agressive way

xbalaji / git-config

Created September 11, 2018 02:07

git config commands

	# git ignore certificates
	# git -c http.sslVerify <git command>
	git -c http.sslVerify=false pull

	# to disable for the entire repo
	git config http.sslVerify false

xbalaji / python_docker.sh

Last active September 3, 2018 07:21

docker-python-cheatsheet

	# run a python 2.7 in a docker container, debian linux, apt works
	docker run --name py27 -d -t python:2.7

	# exec bash in the docker container
	docker exec -i -t py27 /bin/bash

	# run a container with mounting directory, mount volume should be absolute path
	docker run --name py27 -d -t -v ~/all/xb-all/utils:/utils python:2.7

	# stop and remove a running container

xbalaji / oneliners-generate-index-html.sh

Last active October 10, 2022 04:02

generate a quick index.html page including sub directories

	# oneliners-generate-index-html.sh
	# this takes care of sub directories as well, adds a table with row numbers, easy for reference
	# wrote this script for generating pages in gitlab :)

	find . -type f \| sort \| awk 'BEGIN {print "<html><body><table align=center border=1>"} {printf "<tr><td>%d<td><a href=\"%s\">%s</a>\n", FNR, $0, $0 } END {print "</table></body></html>"}' > index.html

xbalaji / .gitignore

Created September 1, 2018 18:16

gitignore files

	# ignore swap files
	*.sw?
	.*.un~
	.*.sw~

	# global git ignore, for all repos
	# git config --global core.excludesfile ~/.gitignore_global

	# see also: https://github.com/github/gitignore

xbalaji / pyserver.sh

Last active August 24, 2018 22:44

python simple webserver - non blocking one liner

	# from: https://recipes.readthedocs.io/en/latest/pyserv.html

	screen -dmS pyserv python -m SimpleHTTPServer 80


	# simple screen cheat sheet
	#
	# To list detached screen sessions
	# screen -ls
	#

xbalaji / ansible-vault-pass.sh

Created March 24, 2018 03:19

ansible-vault-pass

	use the technique described in http://docs.ansible.com/ansible/latest/config.html#default-vault-password-file

	create a file: vault-pass.sh

	cat > vault-pass.sh << EOF
	#! /bin/bash
	echo $ANSIBLE_VAULT_PASSWORD
	EOF

	chmod +x vault-pass.sh

xbalaji / ansible-getfacts.yml

Created March 24, 2018 03:17

ansible-getfacts

	---

	#
	# Filename : getfacts.yml
	# Date : 15 Dec 2017
	# Author : Balaji Venkataraman ([email protected])
	# Description : get facts about hosts
	#
	# Usage:
	# run this playbook against specific host(s) as follows:

xbalaji / oneliners-ansible.sh

Last active February 24, 2021 04:28

ansible-adhoc-facts

	# get facts from a remote 'myhost.com' with ssh user root, password on prompt
	ansible all -i 'myhost.com,' -m setup -u root -k

	# Ansible playbook structure - create directories first, so you can run a single touch command
	mkdir -p group_vars host_vars library filter_plugin roles/common/{tasks,handlers,templates,files,vars,defaults,meta}
	touch ansible.cfg hosts.ini site.yml staging.ini production.ini roles/common/{tasks,handlers,templates,files,vars,defaults,meta}/main.yml

xbalaji / ubuntu-minimal-desktop.sh

Created March 7, 2018 04:06

ubuntu minimal desktop

	# https://askubuntu.com/questions/53822/how-do-you-run-ubuntu-server-with-a-gui
	sudo apt -y update
	sudo apt install -y xorg
	sudo apt install -y --no-install-recommends lightdm-gtk-greeter
	sudo apt install -y --no-install-recommends lightdm
	sudo apt install -y --no-install-recommends ubuntu-gnome-desktop