my customized mksh startup script

.mkshrc

# @(#) ~mitry/mkshrc for MkSh on Android
# @url https://termbin.com/b8fn -- 2023-04-28 version
# @url https://snippet.host/hzhrsr

# If not running interactively, don't do anything
[[ -o interactive ]] || return
# [[ $- != *i* ]] && return

# Prettify error messages:
(( ${#0} > 10 )) && exec -a mksh $0 "$@"

#: ${USER:=$(id -un)} ${HOSTNAME:=$(getprop ro.product.device)}
: ${USER:=me} ${HOSTNAME:=mi3phone} ${HOME:=/sdcard}
: ${SHELL:='~/bin/mksh'}
#: ${TMPDIR:=/data/local/tmp} # chmod a=rwx,o+t $TMPDIR
: ${TMPDIR:=~/../tmp}
: ${TERM:=vt100}
: ${LANG:=ru_RU.UTF-8} ${TZ:=Europe/Moscow}
: ${TERMINFO:=~/.terminfo}
#: ${ENV:=~/.mkshrc}

# by mitry 
PATH=~/bin:$PATH

(( USER_ID )) || HOME='/root'

# by mitry: clear Java environment
#unset BOOTCLASSPATH DEX2OATBOOTCLASSPATH SYSTEMSERVERCLASSPATH

export HOME HOSTNAME MKSH SHELL TERM USER TMPDIR PATH TERMINFO
export LANG TZ # LC_ALL=ru_RU.UTF-8
export COLORTERM=trucolor
export LD_LIBRARY_PATH=~/lib
export PREFIX=/data/data/hackpal.androidterm/app_HOME

export CURL_CA_BUNDLE=~/usr/etc/tls/cacert.pem
export MAGIC=/sdcard/.config/magic.mgc
export WGETRC=~/.wgetrc

# less environment not supported by busybox?
export PAGER=less LESS='-FMRX~' LESSHISTFILE=-

: export XDG_CONFIG_HOME=~/.config
: export XDG_DATA_HOME=~/.local/share
: export XDG_CACHE_HOME=~/.cache
: export INPUTRC="$XDG_CONFIG_HOME/shell/inputrc"

## bat can be used as a colorizing pager for man,
# by setting the MANPAGER environment variable:
: export MANPAGER="sh -c 'col -bx | bat -l man -p'"
export MANPATH="${HOME}/.local/share/man:${MANPATH}"

# bat configuration: `bat --config-file`
: export BAT_CONFIG_PATH=~/.bat.config
: export BAT_THEME='Solarized (dark)'
: export BAT_STYLE='grid,header-filename'

# eval $(resize) ; export MANWIDTH=$COLUMNS
: export GREP_COLORS='ms=01;31:mc=01;31:sl=:cx=:fn=:ln=:bn=:se='
# colored GCC warnings and errors
: export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
: export CLICOLOR=1

CDPATH=:~/storage:/sdcard:~

HISTFILE=~/.mksh_history
: HISTSIZE=256
FCEDIT=nano

####################
## Source functions:
####################

# [[ -r /etc/mkshrc ]] && source /etc/mkshrc

for file in ~/.bashrc.d/*.sh; do
	source "$file"
done; unset file

##############
## Command prompt:
##############
: HOME=${HOME/%\/}	# Remove trailing slash
PS1=$'\1\r\1\e[1;37;48;5;166m\1'
PS1+='${| local e=$?; (( e )) && REPLY+=" $e "; return $e }'
PS1+=$'\1\e[0;38;5;108m\1'
PS1+='$USER'
PS1+=$'\1\e[37m\1@\1\e[0;38;5;108m\1'
PS1+='$HOSTNAME'
PS1+=$'\1\e[1;37m\1:\1\e[1;38;5;67m\1'
PS1+='${PWD/#$HOME/\~}'
PS1+=$'\1\r\1\n\e[0;37m\1'

# PS1+=$(print -A "USER_ID? 0x2AF8 : 0x23")
if (( USER_ID )); then
	PS1+='❯ '	# PS1+='➜ ' PS1+='⫸ ' PS1+='⚡ '
else
	PS1+='# '
fi

PS1+=$'\1\e[m\1'
#PS1+=$'\e]12;#990000\a' # cursor color and shape

# Simple colored prompt:
false && {
	PS1=$'\1\r\1\e[1;38;5;67m\1'
	PS1+='${PWD/#$HOME/\~}'
	PS1+=$'\1\e[1;'
	PS1+='$(($? ? 31:37))m'
	if (( USER_ID )); then 
		PS1+=$'\1\$ \1\e[m\1'
	else
		PS1+=$'\1\# \1\e[m\1'
	fi
#	PS1+=$'\1\$(print -A "USER_ID? 0x2AF8 : 0x23") \1\e[m\1'
}

export PS1

## Set text foreground/background to RGB color
# \e[38;2;<R>;<G>;<B>m
# \e[48;2;<R>;<G>;<B>m

##############
## Directory listing colors
##############
# [[ -r ~/.dircolors ]] && eval $(dircolors -b ~/.dircolors)
test -r ~/.dircolors && eval $(dircolors -b $_)

##############
## Aliases
##############

## Directory aliases
# @usage cp x ~alias/subdir
alias -d bin=~/bin
alias -d sd=/sdcard
alias -d c=~sd/.config
alias -d d=~sd/Download
alias -d md=~sd/Documents/MD-Notes
alias -d x=~bin
alias -d in=~c/2inst

alias cls='clear&&clear'
: alias cls='\\builtin print -n \\e[H\\e[2J'

alias bb='~bin/busybox'
: alias bb='/system/bin/toybox'

alias cp='cp -vi'
alias mv='mv -vvi'
alias rm='rm -vi'
alias ln='ln -v'
alias du='du -h'
alias df='df -h'
alias mkdir='mkdir -vp'
alias rsync='rsync -vrPlu'

# `mount` output pretty and human readable:
alias mount='mount |column -t'

alias     ,='\\builtin cd -'
alias    ..='\\builtin cd ..'
alias   ...='\\builtin cd ../..'
alias  ....='\\builtin cd ../../..'
alias .....='\\builtin cd ../../../..'
alias  cd..='\\builtin cd ..'
alias   cd-='\\builtin cd -'

## ls setup
#
alias ls='ls --color=auto'
alias l='ls -hGF --time-style iso' la='l -A' ll='l -l' lo='l -lA' l.='l -d .*'

# type tree &>/dev/null || alias tree="\\command ls -R | grep ':$' | sed -e 's/:$//;s/[^─][^\/]*\//──/g;s/^/ /;s/─/├/'"

type exa &>/dev/null && { # exa / eza -- ls replacements
	alias l='exa --git --classify --group-directories-first --color-scale --time-style iso' la='l -a' lo='l -la'
	alias tree='l --tree'
	export EXA_COLORS="xx=38;5;138:sn=38;5;138:sb=1;38;5;173:da=38;5;67:uu=38;5;108:du=38;5;108"
}

# toybox grep supports colored output:
alias grep='grep --color=auto'
: alias dd='dd status=progress'

alias w='\\builtin whence'
alias e='\\builtin echo'	# not print, as it more curious about args
alias h='\\builtin fc -l'
alias nn=nano
alias now='date +"%a %d %b %R"'
alias path='\\builtin echo ${PATH//:/"\n"}'

# install all from the `~in` aliased catalog
alias inst='install -sm 755 -t ~/bin ~in/*'
alias inst-lib='install -m 755 -t ~/lib ~in/*.so*'

# Re-run last command as root
: alias 's!'='su -c $(fc -lnr -1)'
alias doch='su -c "$(\builtin fc -ln -1)"'
alias plz=doch

alias www='wget -qO-'
alias drill='drill -c ~/etc/resolv.conf'

# IP addresses
alias myip='drill -Q myip.opendns.com @resolver1.opendns.com'
: alias myip='dig -r +short myip.opendns.com @resolver1.opendns.com'
: alias myip='www http://ip4only.me/api/ | cut -d, -f2'
: alias localip="ipconfig getifaddr en0"

## termbin.com -- Netcat-based command line pastebin.
# @usage: echo just testing!  | nc termbin 9999
alias tb='nc termbin.com 9999'

## Android apps:
: alias pml='pm list packages'
: alias start='am start --user 0 -a android.intent.action.VIEW -d'
: alias play='am start --user 0 -n org.videolan.vlc/org.videolan.vlc.gui.video.VideoPlayerActivity -a android.intent.action.VIEW -d'

##############
## Key binding
##############
bind ^L=clear-screen
: bind ^T=backward-word
: bind ^G=forward-word

bind ^P=search-history-up
bind ^N=search-history-down
: bind ^X,=prev-hist-word

bind ^[p=up-history
bind ^[n=down-history

: bind ^[,=set-mark-command
: bind ^[w=kill-region

: bind ^[^[=list
: bind ^X^V=version

# unbind <*> : fix by mitry for mksh-R41
: bind -m '*=*'
: bind *=auto-insert

##############
# Functions
##############
sudo() su -c "$@"


## Highlighting `--help` messages with the batcat
# and bind this function to Esc-e key
_help() {
	\command "$@" --help 2>&1 | bat -plhelp --file-name "$@"
}
bind -m '^[e=^A _help ^[f^K^J'

## Explaining Shell Commands via manker.com
# @usage boy  'cmd -o | ...'   one quoted command to explain it
# @usage boy ls -lH
boy() {	# synonyms for `man`: boy, chap, dude, gay...
	curl -Gso- "https://www.mankier.com/api/v2/explain/?cols=${COLUMNS}" --data-urlencode "q=$*" | bat -pl help
}

## Get man page from mankier.com
# @TODO fix pandoc params
manker() {
	curl -LGso- --data-urlencode "q=$*" https://www.mankier.com/ \
		| pandoc -t markdown -f html --normalize --columns ${COLUMNS} \
		| bat -l markdown
}


## Weather console report
# @args: Location / ?M&format=4 / ?0M / :help
wttr() www -T5 http://ru.wttr.in/${@:-?M0}

## Online cheat sheets / TL;DR lookup
cheat() www -T5 http://cheat.sh/${@:-:help}?style=pastie
alias tldr=cheat

## httpbin -- сервис отладки HTTP запросов и ответов
httpbin() www http://httpbin.org/${@:-ip}

## Starwars in ascii-art:
: alias starwars='telnet towel.blinkenlights.nl'

## Remount RW/RO filesystem
# @usage rw
# @usage rw /mnt/point
# @usage rw / ro
rw() su -c mount -o remount,${2:-rw} ${1:-/system}

## Set *xterm title
title() print -n "\e]0;${*:-$USER @ $HOSTNAME}\07"

## Отцентровать сообщение на экране
# @usage center "hello world"
# @usage while read; do center "$REPLY" ; done < file.txt
center() printf '%*s%s\n' $(( ( $COLUMNS - ${#1} ) / 2 )) ' ' "$1"

## Run `dig` and display the most useful info
digga() dig +nocmd "$1" any +multiline +noall +answer

## Display unique lines (@TOTEST)
dedup() awk '! x[$0]++' $@

## Count files or directories in directory
# @usage count /path/to/dir/*
# @usage count /path/to/dir/*/
count() \\builtin print "$#"

########
umask 022

: if [[ -o login ]]
: then
	[[ -d ~ ]] && cd ~

	(( !$? )) && {
		: clear
		#[[ -r ~/etc/motd ]] && print -e "\e[2;37m$(<~/etc/motd)\e[m\n"
		test -r ~/etc/motd && print -e "\e[2;37m$(<$_)\e[m\n"
	}
: fi

# test -r ~/.mkshrc && source $_

: # EOF # vim:filetype=sh