Buddy Palumbo buddyp1952

git diff View difference between Stage and Working Directory
git diff --staged View difference between HEAD and Stage
git diff HEAD View difference between HEAD and Working Directory
origin refers to the source repository from where it was cloned.
HEAD is a reference to the last commit in the currently checked-out branch.
Staged and index both are same
Unstaged changes exist in our Working Directory, but Git hasn’t recorded them into its version history yet.
Staged changes are a lot like unstaged changes, except that they’ve been marked to be committed the next time you run git commit

	git checkout master
	git pull
	git checkout 666-my-evil-branch
	git checkout master
	git merge --squash 666-my-evil-branch
	git commit -nv
	git checkout -b 666-my-evil-branch-clean
	git push -u origin 666-my-evil-branch-clean

	git checkout master
	git pull
	git checkout 666-my-evil-branch
	# are you really on the right branch?
	git branch
	# is everything in the right state?
	git status
	# do it
	git merge master
	# fix problems

	scp /etc/resolv.conf host:/tmp
	ssh -t host "sudo mv /tmp/resolv.conf /etc \
	&& sudo systemctl disable systemd-resolved \
	&& sudo systemctl stop systemd-resolved \
	&& host google.com"

	#!/bin/bash -x

	# install packages
	sudo apt install snmp snmpd snmp-mibs-downloader -y -qq

	# create config file
	cat > /tmp/snmpd.conf << EOF
	# Listen for connections on all interfaces (IPv4 only)
	agentAddress udp:161

	openssl crl2pkcs7 -nocrl -certfile /usr/lib/ssl/certs/ca-certificates.crt \
	\| openssl pkcs7 -print_certs -text -noout