hackerb9

hackerb9

#!/bin/bash -e
# extract_cookies.sh:
#
# Convert from Firefox's cookies.sqlite format to Netscape cookies,
# which can then be used by wget and curl. (Why don't wget and curl
# just use libsqlite if it's installed?)

# USAGE:
#
# $ extract_cookies.sh > /tmp/cookies.txt

hackerb9

hackerb9

#!/bin/sh
# Silly speed test just by downloading a file directly to /dev/null
# Useful on routers which only have busybox installed.
# ↄ⃝🄯 B9 2016, 2018, 2023. Creative Commons Zero.

# NOTA BENE: cachefly has worked for over a decade, however they may
# be getting tired of scripts like this. Starting February 2023, their
# 100mb.test file is empty and the 50mb.test file holds 100MB.

dotest() {

hackerb9

#!/bin/bash

# sixcat: Use sixel graphics to show an image inside a terminal.
# sixgif: Use sixel graphics to play an animation inside a terminal.

# Version 1.0
# hackerb9, June 2017

# Sixel graphics are supported by terminals such as the DEC VT340 and
# emulators, such as 'xterm -ti vt340'.

hackerb9

#!/bin/bash -e
# Bogus disk speed tester by b9 2016-2021
# Well, not exactly bogus, but overly simplistic.

TMPDIR=/tmp			# where to write the file
COUNT=64			# number of blocks
BS=1				# blocksize (in *MEGA*bytes)
total=$((COUNT*BS))

[ "$1" ] && TMPDIR="$1"		# Usage: bogodisk [dir [count]]

hackerb9

#!/bin/bash

# XXX showanddelete hacked to show best view by default and to
# change the image every five seconds if no key pressed.

# Maximum number of seconds to wait for a response from the terminal
# after a an escape sequence query. Usually, terminals respond much
# faster than 0.1 seconds, but may need to be increased for slow links
# (e.g., RS232C, ssh).
TIMEOUT=0.1

hackerb9

hackerb9

# Some handy informal duration functions in Bourne shell (bash is fine, too).

# duration(): 	given seconds, returns commonsense equivalent duration.

# ago(): 	given seconds from epoch, compares to current time.

# howlongago(): show how long ago a file or subdir was last modified.
#		given a file, shows how long ago that file was updated.
#		given a directory, recursively searches for most
#				   recently changed FILE (not directory)

hackerb9

RS-232 speed vs tokenization speed of TRS-80 Model 100

File is 16,197 bytes, ASCII BASIC.

Command	Bits per second	Time	Effective bps
LOAD "COM:98N1ENN"	19200	58s	2793
LOAD "COM:88N1ENN"	9600	59s	2745
LOAD "COM:68N1ENN"	2400	78s	2076
LOAD "COM:48N1ENN"	600	270s	600