netj

#!/usr/bin/env bash
# exshell -- a handy way to use command-line formulae's output to augment a TAB-separated input
#
# Synopsis:
# $ cat a.txt
# USA	United States of America
# India	Republic of India
# South_Korea	Republic of Korea (ROK)
#
# $ exshell <a.txt \

netj

#!/usr/bin/env bash
# remocon -- run given command remotely, replicating local git work tree on a remote host, and downloading remote changes if needed
#
# Author: Jaeho Shin <netj@sparcs.org>
# Created: 2018-03-08
##
set -euo pipefail

error()   { echo >&2 "📡 ‼️ " "$@"; false; }
warning() { echo >&2 "📡 ⚠️ " "$@"; }

netj

# StackOverflow.bash

$ (s() { echo $1; [[ $1 -le 0 ]] || s $(($1 - 1)); }; time s 6977)
Segmentation fault (core dumped)

$ (s() { echo $1; [[ $1 -le 0 ]] || s $(($1 - 1)); }; time s 6976)
real    0m10.097s
user    0m10.064s
sys     0m0.032s

netj

#!/usr/bin/perl -w
# ts2dur -- Annotates a timestamp-per-line input with the duration between two lines
#
# Author: Jaeho Shin <netj@sparcs.org>
# Created: 2017-02-17
##
use strict;
use POSIX qw(strftime);
use Date::Parse;
use Time::HiRes;

netj

netj

#!/usr/bin/env bash
# simple network I/O bandwidth test with ssh and pv
# Author: Jaeho Shin <netj@cs.stanford.edu>
# Created: circa 2013

host=${1:?ssh-able host name}; shift
maxbytes=${1:-$((2 ** 29))}; shift
bs=${1:-$((2 ** 16))}; shift
# rest are ssh options
set -- ssh -S none -o Compression=no -o ControlMaster=no "$@" $host

netj

// Scroll to selection focus, but only if it's out of view. Align selection
// focus with the top or bottom edge of its scroll-container. Return true
// on success.
// * there might be several nested scroll-containers, including window
// * must not try to scroll overflow:hidden and overflow:visible elements
// * no scrolling should happen if selection focus is visible
// * selection is not necessarily collapsed
// * range.getBoundingClientRect doesn't work for collapsed ranges
// * Opera reports incorrect startOffset and endOffset for collapsed ranges
//   outside of text nodes (e.g. between 2 <br> elements), range.insertNode

netj

Keybase proof

I hereby claim:

• I am netj on github.
• I am netj (https://keybase.io/netj) on keybase.
• I have a public key whose fingerprint is 1111 1252 8C8F 4747 3140 1304 7860 1291 9E35 D477

To claim this, I am signing this object:

netj

netj

RUN adduser --disabled-password --gecos "" user \
 && adduser user adm \
 && bash -c "echo '%adm ALL=(ALL:ALL) NOPASSWD: ALL' | tee -a /etc/sudoers"
USER user
ENV USER=user