File size limit:

• FAT32 : 4GiB
• NTFS : 16 EB
• ext3 : 2 TiB
• ext4 : 16 TiB

Partition size limit:

• FAT32 : 2TiB
• NTFS : 2TiB
• ext3 : 32TiB
• ext4 : 1 EiB

See ext2fsd for Windows ex3/4 FS support

Syntax

ssh user@remoteHost.com -L 81:remoteHost:81

ssh user@192.168.0.112 -L 81:r192.168.0.112:81

Script

#!/bin/bash
function ssh-tunnel-112(){
        export $(grep -v '^#' .env | xargs)
        echo "ssh to .112:8081 to pi:3001"
        sudo ssh me@192.168.0.112 -L 8081:pi:3001
}
echo "creating tunnel on port 81"
ssh-tunnel-112

Resources:

• https://www.php.net/manual/en/reserved.variables.argv.php
• https://www.php.net/parse_str
• https://stackoverflow.com/questions/6779576/how-to-pass-parameters-from-bash-to-php-script#6779733

Shell

echo "Testing destination dir -" $ytuDest

PHP Main

/*
 * Start of PHP CLI Script
 */
//require_once '/home/silosix/git/phpunitwebdriver/src/Shell/YtdlWrapper.php';
//require_once '../Shell/YtdlWrapper.php';
print "Downloading YT Videos: START"."\n";
print "parsing arguments"."\n";
parse_str($argv[2],$output);
var_dump($argv);
var_dump($output);
$ytuDest = $output['ytuDest'];
print "ytuDest=" .

echo Options

 Options      Description
 -n      do not print the trailing newline.
 -e      enable interpretation of backslash escapes.
 \b      backspace
 \\      backslash
 \n      new line
 \r      carriage return
 \t      horizontal tab
 \v      vertical tab

• source:
  • https://ubuntu-mate.community/u/NicoD
  • https://raspberrypi.stackexchange.com/questions/100926/64-bit-os-on-raspberry-pi-4/105082#105082
  •  
• Ubuntu Mate 19.10 download:
  • https://ubuntu.com/download/iot/raspberry-pi
  • x64
    • http://cdimage.ubuntu.com/releases/19.10/release/ubuntu-19.10-preinstalled-server-arm64+raspi3.img.xz
  • x32
    • http://cdimage.ubuntu.com/releases/19.10/release/ubuntu-19.10-preinstalled-server-armhf+raspi3.im

source: https://github.com/jackaudio/jackaudio.github.com/wiki/WalkThrough_User_AlsaInOut

Flash to Jack: https://jackaudio.org/faq/routing_flash.html

source: https://www.ostechnix.com/create-animated-gif-ubuntu-16-04/

• heisted a 'sticker' png from facebook messenger
• cropped it at 150x150 for 12 images
• created GIF from cropped images
• use convert & specify a group of images

convert -delay 3 -loop 0 throw_hearts_cr*.png bunny.gif

Raspberry Pi change username

Sources:

• https://www.raspberrypistarterkits.com/guide/raspberry-pi-default-login-change/
• https://pimylifeup.com/raspberry-pi-samba/
• http://archive.raspberrypi.org/html/
• http://archive.raspberrypi.org/

Pi username change

log out
sudo passwd root
<root_passwd>

logout

usermod –l mdp pi
<mdp_passwd>

Check home dir

usermod –m –d/home/mdp mdp

Pi Password change

Logout
login mdp
passwd

Samba - list users

sudo pdbedit -L -v

Unix username:        jimmy
NT username:          
Account Flags:        [U          ]
User SID:             S-1-

Some applications - such as gitg - make available LOCAL commits & branch management, but have no provision for PUSHING to the remote origin.

Luckly, git leverages 'hooks' that provide a means to add shell scripts for such a need.

Once a commit is done on a branch, git will call "/.git/hooks/post-commit" and - if present - will run the contained shell script.

#!/bin/bash

#
# post-commit web hook
#
#git push -u origin develop
git push -u origin ffsync-setup

#
# set this file to executable
#
# chmod 755 post-commit
#

this code block will push the ffsync-setup branch to the remote origin

source: http://wiki.playonlinux.com/index.php/How_to_move_PlayOnLinux_virtual_drives_to_another_disk

How to move PlayOnLinux virtual drives to another disk