Linux Dot Files

Approaches to managing dot files:

.nanorc

# Version: nano 6.2
# from https://github.com/davidhcefx/Modern-Nano-Keybindings
# Syntax highlights (path might be different)
include "/usr/share/nano/*.nanorc"
include "/usr/share/nano/extra/*.nanorc"

# Options
set tabsize 4
set tabstospaces
set linenumbers
set numbercolor yellow,normal
set indicator   # side-bar for indicating cur position
set mouse       # enable mouse support
set smarthome   # `Home` jumps to line start first
set zap         # delete selected text as a whole
set afterends   # `Ctrl+Right` move to word ends instead of word starts
set wordchars "_"   # recognize '_' as part of a word
set historylog      # remember search history
set multibuffer     # read files into multibuffer instead of insert

unbind ^Y  main  # remove unused bindings
unbind ^A  main
unbind M-Q all

#####  Modern Nano Keybindings  #####
## M-U   undo
## M-R   redo
## ^-C   copy
## ^-X   cut
## ^-V   paste
## ^-K   delete line
## ^-bsp delete until word start (or M-bsp)
## ^-del delete until next word
## ^-L   refresh and center cursor
## ^-S   save file
## M-/   comment/uncomment
## M-V   insert keystroke verbatim
## M-:   record macro
## M-;   play macro
## ^-Space  autocomplete word

## M-C   cursor position
## ^-W   search forward (= M-W + prompt)
## ^-E   seach backwards (= M-E + prompt)
## ^-R   replace
## ^-up  goto previous block
## ^-dn  goto next block
## M-(   goto block begin
## M-)   goto block end
## ^_    goto line/coloumn number
## ^-G   head of file (vim-like)
## M-G   end of file
## M-up  screen up one line
## M-dn  screen down one line
## M-]   goto matching bracket
## M-ins   insert anchor
## M-pgup  goto previous anchor
## ^-T   terminal (eg. |xxd)

bind M-R  redo          main
bind ^C   copy          main
bind ^X   cut           main
bind ^V   paste         main
bind ^K   zap           main
bind ^H   chopwordleft  all
bind ^Q   exit          all
bind ^Z   suspend       main
bind M-/  comment       main
bind ^Space complete    main

bind M-C  curpos        main
bind ^E   wherewas      all
bind M-E  findprevious  all
bind ^R   replace       main
bind ^B   pageup        all  # vim-like support
bind ^F   pagedown      all
bind ^G   firstline     all
bind M-G  lastline      all
bind M-1  help          all  # fix ^G been used
bind Sh-M-C  constantshow  main  # fix M-C been used

zsh startup

.zshenv → [.zprofile if login] → [.zshrc if interactive] → [.zlogin if login] → [.zlogout sometimes]

.zshenv is always sourced. It contains exported variables that should be available to other programs, e.g. $PATH, $EDITOR, $PAGER.

.zprofile is the same as .zlogin except that it’s sourced before .zshrc while .zlogin is sourced after .zshrc. According to the zsh documentation:

.zprofile is meant as an alternative to .zlogin for ksh fans; the two are not intended to be used together, although this could certainly be done if desired.

.zshrc is for interactive shell configuration:

set options for the interactive shell with the setopt and unsetopt commands
load shell modules
set history options
change prompt
set up zle and completion, etc.
set any variables that are only used in the interactive shell (e.g. $LS_COLORS).

.zlogin is sourced on the start of a login shell but after .zshrc if the shell is also interactive. This file is often used to start X. Some systems start X on boot, so this file is not always very useful.

.zshenv

# .zshenv is sourced on all invocations of the shell, unless the -f option is
# set. It should contain commands to set the command search path, plus other
# important environment variables.
# .zshenv should NOT contain commands that produce output or assume the shell
# is attached to a tty.

export AWS_DEFAULT_REGION=us-east-1
export AWS_PAGER=''

export GOROOT=$HOME/go
export PDSH_RCMD_TYPE=ssh
export EDITOR=emacs
if [ "$INSIDE_EMACS" ]; then
    export PAGER="/usr/bin/more"
else
    export PAGER="/usr/bin/less"
    export LESS="-isR"
    #alias lv="less"
fi

case "$AWS_VAULT" in
    "dev-from-security"|"dev-from-sso" )
        export KUBECONFIG="$HOME/.kube/dev-config" ;;
    *)
        export KUBECONFIG="$HOME/.kube/config" ;;
esac

.zprofile

# .zprofile is similar to .zlogin, except that it is sourced before .zshrc.
# .zprofile is meant as an alternative to .zlogin for ksh fans;
# the two are not intended to be used together,
# although this could certainly be done.
if [ -f ~/.zsh_aliases ]; then
    . ~/.zsh_aliases
fi

eval "$(ssh-agent -s)"
# add more IDs as needed
ssh-add -q ~/.ssh/id_rsa ~/.ssh/latitude_id_rsa

.zshrc

# .zshrc is sourced in interactive shells.
# Should contain commands to set up aliases, functions, options, key bindings,
# etc.

# Set up the prompt
autoload -Uz promptinit
promptinit
prompt suse
# Load version control information
autoload -Uz vcs_info
precmd() { vcs_info }

# Format the vcs_info_msg_0_ variable
zstyle ':vcs_info:git:*' formats '[%b]'
#zstyle ':vcs_info:git*' actionformats "%r/%S %b %m%u%c "
#zstyle ':vcs_info:git*' actionformats "%s  %r/%S %b %m%u%c "

setopt histignorealldups sharehistory

# Use emacs keybindings even if our EDITOR is set to vi
bindkey -e

# Keep 1000 lines of history within the shell and save it to ~/.zsh_history:
HISTSIZE=1000
SAVEHIST=1000
HISTFILE=~/.zsh_history

# Use modern completion system
autoload -Uz compinit
compinit

zstyle ':completion:*' auto-description 'specify: %d'
zstyle ':completion:*' completer _expand _complete _correct _approximate
zstyle ':completion:*' format 'Completing %d'
zstyle ':completion:*' group-name ''
zstyle ':completion:*' menu select=2
eval "$(dircolors -b)"
zstyle ':completion:*:default' list-colors ${(s.:.)LS_COLORS}
zstyle ':completion:*' list-colors ''
zstyle ':completion:*' list-prompt %SAt %p: Hit TAB for more, or the character to insert%s
zstyle ':completion:*' matcher-list '' 'm:{a-z}={A-Z}' 'm:{a-zA-Z}={A-Za-z}' 'r:|[._-]=* r:|=* l:|=*'
zstyle ':completion:*' menu select=long
zstyle ':completion:*' select-prompt %SScrolling active: current selection at %p%s
zstyle ':completion:*' use-compctl false
zstyle ':completion:*' verbose true

zstyle ':completion:*:*:kill:*:processes' list-colors '=(#b) #([0-9]#)*=0=01;31'
zstyle ':completion:*:kill:*' command 'ps -u $USER -o pid,%cpu,tty,cputime,cmd'

# The following lines were added by compinstall
#zstyle :compinstall filename '/Users/asokolsky/.zshrc'
#autoload bashcompinit && bashcompinit
#autoload -Uz compinit && compinit
# End of lines added by compinstall

# install CLI completions
source <(kubectl completion zsh)
complete -C '/usr/local/bin/aws_completer' aws

#source $ZSH/oh-my-zsh.sh
#
# ensure the history is NOT shared between terminals
# https://linux.die.net/man/1/zshoptions
#
unsetopt inc_append_history
unsetopt share_history

Notes to Self

Alex Sokolsky's Notes on Computers and Programming