izabera

This is the table from man 5 terminfo.

Do NOT hardcode terminal escape sequences. Use tput with the cap-names from the table below to get the right code for your terminal.

(P)	indicates that padding may be specified

izabera

A funky shell thingy that I've never seen before

So you're in posix sh and you want to do the equivalent of this in bash:

foo | tee >(bar) >(baz) >/dev/null

(Suppose that bar and baz don't produce output. Add redirections where needed if that's not the case.)

izabera

#!/bin/sed -f

# store rule in hold space
1 { h; d; }

# make borders wrap
s/\(.\)\(.*\)\(.\)/>\3\1\2\3\1|/

# do some mucking around that can probably be done more elegantly by someone who is actually good at sed
x; G; h; s/\n.*//; x

izabera

#!/bin/bash
owner=izabera nick=sedirc network=irc.freenode.net
echo "
# send bot data
1 {
  s/.*/nick $nick/p
  s/.*/user $nick $nick $nick :$nick/p

  s/.*/cat factoids 2>\/dev\/null/e; H
  b

izabera

#!/bin/bash
exec {times}> times {typescript}> typescript < "${1-/dev/stdin}"
while read -r; do [[ $REPLY = '  "stdout": [' ]] && break; done # skip to this line
LANG=C
printf "Script started on %(%c)T\n" -1 >&"$typescript" # dummy
while read -r open; [[ $open = '[' ]]; do
  read -r elapsed; read -r string; read -r close
  eval printf %b%n "$string" characters >&"$typescript" # put count in $characters
  printf "%s %s\n" "${elapsed%,}" "$characters" >&"$times"
done

izabera

#!/bin/sh

LANG=C

compile() {
  # some preprocessing and basic optimizations
  code=$(printf %s "$1" |
         (tr -dc '\133\135<>,.+-'; echo) | # ksh's builtin tr doesn't like []<>,.+-
         sed -e :a -e 's/<>//g;s/><//g;s/+-//g;s/-+//g
                       s/\[-]/z/g;s/zzz*/z/g;s/[+-]z/z/g;ta')

izabera

#!/bin/sh -e
target=${1?usage: $0 pid [fd]}
fd=${2-1}
fifo=fifo.$$
log=log.$$

mkfifo $fifo
echo writing to $log
tee $log <$fifo >/proc/$target/fd/$fd &

izabera

#!/bin/bash

reverse () {
  # $1 = name of a non sparse array
  # $2 = index of first element
  # $3 = index of last element
  #(( $# != 3 )) && return 1

  # expand the values, save in a local array
  #eval local array=("\"\${$1[@]}\"")

izabera

#!/bin/bash
# source this to make your shell "case insensitive"
insensitive=(
  # reserved words
  case coproc do done elif else esac fi for function if in select then time until while
  # builtin commands
  alias bg bind break builtin caller cd command compgen complete compopt continue declare
  dirs disown echo enable eval exec exit export false fc fg getopts hash help history jobs
  kill let local logout mapfile popd printf pushd pwd read readarray readonly return set
  shift shopt suspend test times trap true type typeset ulimit umask unalias unset wait

izabera

#include <ctype.h>
#include <fcntl.h>
#include <linux/openat2.h>
#include <netinet/in.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#include <unistd.h>