Libs

JQ (reading JSON)

constants=$(cat "test.json" | jq '.' | jq -r "to_entries|map(\"\(.key)=\(.value|tostring)\")|.[]")
echo $constants
exit

Alternative

  {
    "SITE_DATA": {
      "URL": "example.com",
      "AUTHOR": "John Doe",
      "CREATED": "10/22/2017"
    }
  }
  # If you wan't every attribute inside SITE_DATA:
  typeset -A myarray

while IFS== read -r key value; do
    myarray["$key"]="$value"
done < <(jq -r '.SITE_DATA | to_entries | .[] | .key + "=" + .value ' test2.json)


# make use of the array variables
echo "URL = '${myarray[URL]}'"
echo "CREATED = '${myarray[CREATED]}'"
echo "AUTHOR = '${myarray[AUTHOR]}'"

Full recursive, but you cannot use any integer at all

SOURCE="$PWD"
SETTINGS_FILE="./test2.json"
SETTINGS_JSON=`cat "$SETTINGS_FILE"`

declare -A SETTINGS

get_settings() {
    local PARAMS="$#"
    local JSON=`jq -r "to_entries|map(\"\(.key)=\(.value|tostring)\")|.[]" <<< "$1"`
    local KEYS=''

    if [ $# -gt 1 ]; then
        KEYS="$2"
    fi

    while read -r PAIR; do
        local KEY=''

        if [ -z "$PAIR" ]; then
            break
        fi

        IFS== read PAIR_KEY PAIR_VALUE <<< "$PAIR"

        if [ -z "$KEYS" ]; then
            KEY="$PAIR_KEY"
        else
            KEY="$KEYS:$PAIR_KEY"
        fi

        if jq -e . >/dev/null 2>&1 <<< "$PAIR_VALUE"; then
            get_settings "$PAIR_VALUE" "$KEY"
        else
            SETTINGS["$KEY"]="$PAIR_VALUE"
        fi
    done <<< "$JSON"
}

Rename file names starting with x to starting with y

rename 's/X/Y/g' *

Nload

Is for network load tracking

Speedtest-cli

Nano

- Alt - U Undo
- Alt + ^ Copy
- Ctrl + K Cut (use this)
- Ctrl + U Paste

Tmux

This one is pretty decent config:

https://github.com/gpakosz/.tmux#configuration

- <prefix> c Create a new window
- <prefix> w Choose window from a list
- <prefix> - splits the current pane vertically
- <prefix> _ splits the current pane horizontally
- <prefix> h, <prefix> j, <prefix> k and <prefix> l let you navigate panes ala Vim
- <prefix> x Close the current pan
- <prefix> Enter enters copy-mode
- <prefix> space begin selection
- y or use the damn mouse

Also needs the following stuff

• Tmux plugin manager

  git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
  

  then add this to end of the config:

  # List of plugins
  set -g @plugin 'tmux-plugins/tpm'
  set -g @plugin 'tmux-plugins/tmux-sensible'
  
  # Other examples:
  # set -g @plugin 'github_username/plugin_name'
  # set -g @plugin 'git@github.com:user/plugin'
  # set -g @plugin 'git@bitbucket.com:user/plugin'
  
  # Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)
  run '~/.tmux/plugins/tpm/tpm'
  

• Tmux yank Add to config set -g @plugin 'tmux-plugins/tmux-yank' prefix–I install tmux-yank

• Xsel sudo apt-get install xsel # or xclip

• Tmux-powerline (plugin, not the font) [https://github.com/erikw/tmux-powerline]

If your tmux status bar icons looks slightly offset, like they have some margin: adjust your font and it's size to fit.

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Get pressed key code

sudo apt-get install showkey
sudo showkey

Screen

Case sensitive - Ctrl+a c Create a new window - Ctrl+a A Rename the current window - Ctrl+a " List all window - Ctrl+k " Kill current window - Ctrl+a S Split current region horizontally into two regions - Ctrl+a | Split current region vertically into two regions - Ctrl+a tab Switch the input focus to the next region

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