caruccio

How to get the latest patch-level version from a list of distinct versions using bash and awk. This idea was taken from https://stackoverflow.com/a/21103864/1006369

Supose you have the following list of versions:

v1.22.8
v1.22.9
v1.22.10   <-- latest v1.22 series
v1.23.1

caruccio

If you have fuzzy finder, use the following functions to filter for multiple kubernetes services and port-foward using a stable and unique local port.

Put the code below into your ~/.bashrc (or any place you source from)

kpfz ()
{ 
    local svcs=$(FZF_DEFAULT_COMMAND="command kubectl get svc -o json $_NS | svc-ports" fzf -m --ansi --no-preview -1 --exact --select-1 --query="$@");
    if [ -z "$svcs" ]; then
 return;

caruccio

#!/bin/bash
#
# This script will stop a list of running proccesses (var PROCS), disable all monitors and CPUs (except cpu-0).
#
# Usage:
#  pause [duration]
#
# With no parameters it will pause right alway.
# If [duration] is specified, it will detect for inactivity and pause, in an infinite loop. Use CTRL+C to exit.
# [duration] accepts the same as the command sleep.

caruccio

class TermSequence:
    '''Reference: https://stackoverflow.com/a/33206814/1006369
    '''
    sequence = []

    # standard 4-bit color codes
    black          = 30
    red            = 31
    green          = 32
    yellow         = 33

caruccio

#
# Given an array of multi-value items, transform each value into a new array replacing its 
# separator for a space, then access each individual inner-value by index:
#

ITEMS=(
  cup:blue:3
  phone:black:15
  pen:red:1
)

caruccio

# From bash(1) man page
# enable-bracketed-paste (On)
#        When set to On, readline configures the terminal to insert each paste into the editing buffer as a single string of characters, instead of treating each character as if it had  been  read  from
#        the keyboard.  This prevents readline from executing any editing commands bound to key sequences appearing in the pasted text.
#

set enable-bracketed-paste off

caruccio

#!/bin/bash

SERVER=''
SHORT_PARAM='-s'        # short option name
LONG_PARAM='--server'   # long option name

while [ $# -gt 0 ]; do
    case "${1}" in
        $SHORT_PARAM=*|$SHORT_PARAM*|$LONG_PARAM=*|$LONG_PARAM)  ## matches both`[-s|--server]=value` and `[-s|--server] value`
            param="${1#$SHORT_PARAM}"                            ## removes `-s` from the front of $1

caruccio

In bash you can use [[ pattern =~ regex ]] to match on a conditional:

if [[ "hello world" =~ ^hell ]]; then
  echo Match
else
  echo No match
fi

caruccio

function mkcolor()
{
    export $1="${2}" ${1}_E="\[${2}\]"

    case "$1" in
        BOLD|RESET)
            return
        ;;
        *)
            export ${1}_B="$(tput bold)${2}"             # Bold

caruccio

#!/bin/bash

# 
# Install: copy to path
# $ cp kubectl-extract /usr/local/bin
# 
# Usage:
#  $ kubectl extract -n default my-secret
#