tennisonchan’s gists

tennisonchan / git-create.sh

Last active November 10, 2015 22:35

	git-create() {

	repo_name=`basename $(git config --local --get remote.origin.url)`
	dir_name=`basename $(pwd)`
	invalid_credentials=0

	if [ "$repo_name" = "" ]; then
	echo " Repo name (hit enter to use '$dir_name')?"
	read repo_name
	fi

tennisonchan / object_unique_id.js

Last active July 25, 2016 02:40

generate unique id for object without modifying Object.prototype #js

	var __next_objid = 1;

	function objectId(obj) {
	if (!obj) return obj;
	if (!obj.__obj_id) obj.__obj_id = __next_objid++;
	return obj.__obj_id;
	}

tennisonchan / dropkick.sh

Created December 19, 2015 17:24

Detect and Disconnect the DropCam and Withings devices some people are using to spy on guests in their home, especially in AirBnB rentals.

	#!/bin/bash
	#
	# DROPKICK.SH
	#
	# From http://julianoliver.com/output/log_2015-12-18_14-39
	#
	# Detect and Disconnect the DropCam and Withings devices some people are using to
	# spy on guests in their home, especially in AirBnB rentals. Based on Glasshole.sh:
	#
	# http://julianoliver.com/output/log_2014-05-30_20-52

tennisonchan / undo-git-commit-amend

Last active July 25, 2016 02:39

#undo the #git commit amend #sh

	# Move the current head so that it's pointing at the old commit
	# Leave the index intact for redoing the commit.
	# HEAD@{1} gives you "the commit that HEAD pointed at before
	# it was moved to where it currently points at". Note that this is
	# different from HEAD~1, which gives you "the commit that is the
	# parent node of the commit that HEAD is currently pointing to."
	git reset --soft HEAD@{1}

	# commit the current tree using the commit details of the previous
	# HEAD commit. (Note that HEAD@{1} is pointing somewhere different from the

tennisonchan / check_branch.sh

Last active August 3, 2022 04:19

Check if branch exists in #git

	# if branch_name exists, it will return its hash
	# if not, it will returns null

	git rev-parse --verify --quiet branch_name

tennisonchan / pathname_manipulation.sh

Last active April 12, 2016 03:43

To extract the path and the file name from a fullpath

	fullpath_name="/usr/local/a-file-name"
	filename1=${fullpath_name##*/}
	pathname1=${fullpath_name%/*}
	absolute_path=$(readlink -f "$0")

	echo $filename1 # return a-file-name
	echo $pathname1 # return /usr/local/
	echo $absolute_path # return /usr/local/a-file-name

	### OR using basename and dirname

tennisonchan / parameter-expansion.sh

Created April 12, 2016 03:35

Bash Parameter Expansion - To set default value to a variable in sh

	### variable doesn't exist
	echo $variable1

	variable1="${variable1:-default value}"
	echo $variable1
	# return default value

	### variable exists
	variable2="a"
	echo $variable2

tennisonchan / iterm2-preference-setting.txt

Last active July 25, 2016 02:36

#iterm2 preference setting

	# http://stackoverflow.com/questions/6205157/iterm2-how-to-get-jump-to-beginning-end-of-line-in-bash-shell
	FOR ACTION SEND
	⌘← "HEX CODE" 0x01
	⌘→ "HEX CODE" 0x05
	⌥← "SEND ESC SEQ" b
	⌥→ "SEND ESC SEQ" f

tennisonchan / russian_roulette.sh

Last active July 25, 2016 02:36

Russian Roulette in terminal #sh

[ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo "Click"

tennisonchan / enable_ airport.sh

Last active July 25, 2016 02:37

#airport Wireless Tool in #mac #osx

	# /bin/bash

	# To create a symbolic link to the airport command.
	# Make sure /usr/local/sbin is in your PATH
	# echo $PATH
	sudo ln -s /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport /usr/local/sbin/airport

	# Display detailed information on wireless signal quality, noise, security, and other WiFi network attributes.
	airport -I

Tennison Chan tennisonchan