Somajit SomajitDey

Remove old commits from local repo

Shallow fetch from self:

Keep only last n commits--

git fetch --depth=<n-1> . <branch>

###AnyDesk - How Enable Remote Access from ubuntu/debian terminal.

Note:

Here are the commands might be usefull in this purpose:

anydesk --get-status : To get current status of anydesk, which might be offlien,online or nothing.
anydesk --get-id : To get the ID that your system can be accessed by.
anydesk --service : To start anydesk service if not already running (for Linux).
anydesk --restart-service : To restart anydesk service
anydesk --stop-service : To stop anydesk service

Git sees every file in your working copy as one of three things:

tracked - a file which has been previously staged or committed;
untracked - a file which has not been staged or committed; or
ignored - a file which Git has been explicitly told to ignore.

Ignored files are usually build artifacts and machine generated files that can be derived from your repository source or should otherwise not be committed. Some common examples are:

dependency caches, such as the contents of /node_modules or /packages
compiled code, such as .o, .pyc, and .class files

How to automatically start ssh server on boot on Windows Subsystem for Linux

Microsoft partnered with Canonical to create Bash on Ubuntu on Windows, running through a technology called the Windows Subsystem for Linux. Below are instructions on how to set up the ssh server to run automatically at boot.

Edit the /etc/ssh/sshd_config file by running the command sudo vi /etc/ssh/sshd_config and do the following
1. Change Port to 2222 (or any other port above 1000)
2. Change PasswordAuthentication to yes. This can be changed back to no if ssh keys are setup.
Restart the ssh server:
- sudo service ssh --full-restart
With this setup, the ssh server must be turned on every time you run Bash on Ubuntu on Windows, as by default it is off. Use this command to turn it on:

Letting Ubuntu bash on Windows 10 run 'ssh -X' to get a GUI environment on a remote server

First

Install all the following. On Window, install Xming. On Ubuntu bash, use sudo apt install to install ssh xauth xorg.

sudo apt install ssh xauth xorg

In /etc/ssh/sshd_conf, set UsePrivilegeSeparation to no
In /etc/ssh/sshd_conf, temporarily enable plaintext passwords
In /etc/ssh/sshd_conf, change port (e.g. to 23) to avoid confusion with Windows SSH server
sudo service ssh restart
Add alternative port as a new rule to Windows firewall
On the client: ssh-copy-id user@server
In /etc/ssh/sshd_conf, re-disable plaintext passwords

To fix Could not load host key ... error:

sudo ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

	# This function dumps the input stream to the path given as parameter.
	# If PATH gets unlinked by another (cooperative) process, it creates a new file at PATH and continues dump
	# Provide a lockfile as the 2nd positional parameter. This is needed so that another process doesn't remove PATH
	# when it is being written to.

	stream_dump(){
	declare -x path="${1}"
	local lock="${2}"
	local timeout="1" # Interval for polling $path
	declare -x line

	The readline prompt [read -p] is sent to stderr

	The prompt for interactive bash is also sent to stderr. See POSIX mandate below

	Source : https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html

	PS1 :: Each time an interactive shell is ready to read a command, the value of this
	variable shall be subjected to parameter expansion and written to standard error.

	NOTE (source- Bash reference manual):

	abs_path(){
	# Transforms any path, including windows paths, given as parameter, to absolute path.
	# Expands ~, ~-, \ etc.
	# Exitcode: 0 (output to stdout) if path exists, 1 (outout to stderr) otherwise.

	local path="${1}"
	# Windows to Unix path [if operand is Unix path, then wslpath outputs to stderr]
	local buffer=$(wslpath -u "${path}" 2>/dev/null); path="${buffer:-"${path}"}"
	eval path="${path}" # Remove backslash, Tilde expansion etc.
	[[ "${path}" != /* ]] && path="${PWD}/${path}"