View ontouchdo
#!/bin/sh
# sample usage:
# ontouchdo malformed.html 'clear; xmllint --noout --valid malformed.html 2>&1 | head -n20'
#
# Now fix some things in malformed.html and save. See the remaining errors in real time. Ctrl-c to quit.
[ ! -r "$1" ] && echo 'Nothing to watch.' && exit 1
[ ! -n "$2" ] && echo 'Nothing to do.' && exit 1
View bash-snippets.sh
# conditional blocks based on presence of a process in a one-liner
ps -C docker >/dev/null && { echo Hey; echo docker\!;} || { echo What?; echo really?;}
# bash function to get yes/no feed back from the user (return is considered no here)
agree() {
local question="$1"
while true; do
read -p "$question " answer
case $answer in
View mysql-notes
CREATE USER 'someuser'@'localhost' IDENTIFIED BY 'cleartext-password';
GRANT SELECT,INSERT,UPDATE,DELETE ON `database`.* TO 'someuser'@'localhost';
View jq-snippets.sh
# convert `key=value` lines into `{"key":"value"}` json
jq --raw-input 'split("=") | {(.[0]):.[1]}' some.conf | jq --slurp 'add'
View prvate-ip.pl
#!/usr/bin/perl -w
use Net::CIDR;
use Getopt::Long;
# Net::CIDR one liner:
# perl -mNet::CIDR -ne 'print if Net::CIDR::cidrlookup($_, ("10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16"))'
#
# TODO: add ip address validation
View docker-snippets.sh
# Use awk to to redirect docker build output to stderr for visual feedback
# while capturing the image id on stdout when the build is sucessfull
ID=$(docker build . | awk '{print > "/dev/stderr"} END {if (/^Successfully built /) print $NF; else exit 1}')
# given docker volume path, return local storage path
doc2loc(){ docker inspect --format "{{range .Mounts}}{{if eq .Destination \"$1\"}}{{.Source}}{{end}}{{end}}" $2;}
View docker-rmi-interactive.sh
#!/bin/bash
agree() {
local question="$1"
while true; do
read -p "$question " answer
case $answer in
[Yy]|[Yy][Ee][Ss]) return 0 ;;
[Nn]|[Nn][Oo]|'') return 1 ;; # empty string is default
View stop-watch.sh
#!/bin/bash
START=$(date +%s)
read -s -n1 -p $'Press a key when done.\n'
ELAPSED_SECONDS=$(bc <<< "scale=10; ($(date +%s) - $START)")
if [ $ELAPSED_SECONDS -gt 60 ]; then
ELAPSED_MINUTES=$((ELAPSED_SECONDS / 60))
ELAPSED_SECONDS=$((ELAPSED_SECONDS - ELAPSED_MINUTES * 60))
echo -n "$ELAPSED_MINUTES minutes "
fi
View smtp-test
telnet smtp.example.com 25
Trying 203.0.113.1...
Connected to smtp.example.com.
Escape character is '^]'.
220 example.com running My Bitchin Mail Server 1.0.0
HELO example.org
250 example.com hello example.org (198.51.100.1)
MAIL FROM:<postmaster@example.org>
250 2.1.5 sender OK
RCPT TO:<someone@example.com>
View win2003-ntp.txt
net stop w32time
w32tm /unregister
w32tm /register
net time /setsntp:"tick.example.com,0x1 tock.example.com,0x1"
net start w32time