After installation todos #important #bash #linux #git

.bashrc

# I usually add a similar block to the .bashrc

####################################
#####  My Stuff: Walid Shouman  ####
####################################

# disable freezing, follow https://unix.stackexchange.com/a/72092/310075
stty -ixon

#~~~~~~~~~~~~~~~~~~~~~~~#
##  Custom Shortcuts   ##
#~~~~~~~~~~~~~~~~~~~~~~~#
# left ctrl + up and down will match exact keyword from beginning
# We don't overwrite the original up and down to allow navigating around the matched commands freely
bind '"\e[1;5A": history-search-backward'
bind '"\e[1;5B": history-search-forward'

#~~~~~~~~~~~~~~~~~~~~~~~#
## Append Line By Line ##
#~~~~~~~~~~~~~~~~~~~~~~~#
shopt -s histappend
PROMPT_COMMAND="history -a;$PROMPT_COMMAND"

#~~~~~~~~~~~~~~~~~~~~#
## Custom Variables ##
#~~~~~~~~~~~~~~~~~~~~#
# Generic Development
export prosrc="/home/$USER/Documents/projects/pro"
# Open BCI Development
export obsrc="/home/walid/Documents/tests/braingizer/openbci"
# MyMongo Development (testing rails with MongoDB)
export mymongosrc="/home/$USER/Documents/tests/mymongo"
# Atman Development
export atmsrc="/home/walid/Documents/atm/atman"

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
## Productivity Alias Variables ##
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
alias c='xclip -selection clipboard'
alias v='xclip -o'

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
## Productivity Alias Functions ##
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Reference: make bash alias that takes parameter
# http://stackoverflow.com/a/7131683/2730737
# ```mkdir -p``` makes dirs recursively
my_mkdir_and_cd_function() {
    mkdir -p $1
    cd $1
}
alias mkdircd=my_mkdir_and_cd_function

qq_java_search() {
  apt-cache search $@ | grep java
}

# qq_lambda could be replaced by using xargs
# for example:
#   find ~/Documents | grep pdf | xargs -n1 ls -l
# Usage:
#   qq_lambda "$(find ~/Documents | grep pdf)" "ls -l $i"
qq_lambda() { for i in "$1"; do eval ${2}; done; }

#~~~~~~~~~~~~~~~~~~~~#
## Source if exists ##
#~~~~~~~~~~~~~~~~~~~~#

# Usage: source_if_exists ~/.bashrc_custom_k3s
source_if_exists() {
    local script="$1"
    if [ -f "$script" ]; then
        . "$script"
    fi
}

# Usage: source_if_exists_dir ~/.bashrc_custom.d/
#        source_if_exists_dir ~/.bashrc_custom.d/ "*.bak|*.tmp"
source_if_exists_dir() {
    local dir="$1"
    local exclude_pattern="$2"  # Optional second argument to specify patterns to exclude

    if [ ! -d "$dir" ]; then
        # silent by default
        #echo "Directory not found: $dir"
        return 1
    fi

    for script in "$dir"/*; do
        if [ -f "$script" ]; then
            # Extract just the filename from the full path
            local filename=$(basename "$script")

            # Skip files that match the exclude pattern
            if [[ -n "$exclude_pattern" ]]; then
                case "$filename" in
                    $exclude_pattern)
                        continue
                        ;;
                esac
            fi

            source "$script"
        fi
    done
}

source_if_exists_dir ~/.bashrc_custom.d/   "*.manual"
source_if_exists_dir ~/.bash_completion.d/

#~~~~~~~~~~~~~~~~~~~~~~~~~~#
## Kubernetes Development ##
#~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Hint: use
# DEP=deployment-name && mypods $DEP
# or
# DEP=deployment-name
# watch -x bash -c 'mypods $DEP'
# Note that we are using the default namespace
mypods() {
  kubectl get po | grep $1 | \awk '{print $1;}'
}

# A script to get the namespace of a specific release
# helm-find-release RELEASE_NAME
alias helm-find-release="function _helm_find_release() { release_name=\$1; for ns in \$(kubectl get ns -o jsonpath='{.items[*].metadata.name}'); do helm list -n \$ns | grep \$release_name &> /dev/null && echo \"Release \$release_name found in namespace \$ns\"; done; }; _helm_find_release"

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
## Ruby on Rails Development ##
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Use rvm directly
source /home/$USER/.rvm/scripts/rvm
# if the previous one didn't work, try any of the following two options
# source /usr/local/rvm/scripts/rvm
# source /usr/share/rvm/scripts/rvm
# Add RVM to PATH for scripting
export PATH="$PATH:$HOME/.rvm/bin"

#~~~~~~~~~~~~~~~~~~~~~~~#
## SystemC Development ##
#~~~~~~~~~~~~~~~~~~~~~~~#
export SYSTEMC_HOME="/usr/local/systemc231"
export LD_LIBRARY_PATH="/usr/local/systemc-2.3.1/lib-linux"

#~~~~~~~~~~~~~~~~~~~~~~~#
## ARDUINO DEVELOPMENT ##
#~~~~~~~~~~~~~~~~~~~~~~~#
# Usage
#   export ARDCONF="/home/${USER}/Arduino/conf/arduino-cli.yaml";
#   qq_arduino-cli config dump # or any other arduino-cli command
qq_arduino-cli() { arduino-cli $@ --config-file "${ARDCONF}"; }
qq_arduino-cli_debug() { echo arduino-cli $@ --config-file \"${ARDCONF}\"; }

#~~~~~~~~~~~~~~~~~~~~~#
## Search Utilities  ##
#~~~~~~~~~~~~~~~~~~~~~#
# For further understanding, follow this [reference](http://offbytwo.com/2011/06/26/things-you-didnt-know-about-xargs.html)

# number of cores
CORES=4

# caught ANOMALY
# when there's binary file, the counting and file listing will work pretty good, but showing the exact occurances won't work!
# Not sure about sed in this case xD
# TODO: make the opinionated grep show the number of occurances and the file names too!

# find in all non-hidden files
# USAGE: mygrep "some_string"
mygrep() { find * -type f | xargs -n1 -P${CORES} grep $@; }

# find in all hidden and non-hidden files
# USAGE: mygrepa -li "some_string"
#        mygrepa "some_string"
mygrepa() { find . -type f | xargs -n1 -P${CORES} grep $@; }

# NOTE: OPINIONATED
# mygrep series uses the xargs, thus counting will be per file which is usually not desired, thus mycgrep exists for that
mycgrep() { mygrepa -c $@ 2>/dev/null | awk '{s+=$1} END {print s}'; }

# NOTE: VERY OPINIONATED
# my opinionated grep
myogrep() { mygrepa -B3 -A2 --group-separator================ $@ 2>/dev/null;  }

# find all files containing the given string
locstr()  { mygrep  -l $@; }
locstra() { mygrepa -l $@; }

# makes a backup file and replaces files in place
# USAGE: myosed oldstr newstr
# doesn't replace hidden files, for a bit of safety `:D
myosed() { locstr '$1' 2>/dev/null | xargs -i@ sed -ibak 's/$1/$2/g' @; }

# find through git commits, follow https://stackoverflow.com/a/2929502
# Usage: gitgrep WcResolution
#        gitgrep WcResolution docs/Commands.md
gitgrep() {
  if [ $# -eq 1 ]; then
    git grep $1 $(git rev-list --all);
  else
    git grep $1 $(git rev-list --all -- $2) -- $2; 
  fi  
}

#~~~~~~~~~~~~~~~~~~~~~#
## Uncategorized yet ##
#~~~~~~~~~~~~~~~~~~~~~#
# Custom bin file
export PATH="$PATH:~/bin"

# Call using `journalback "1 day ago" -u myservice.service -f`
journalback() {
    time_ago ="$1"
    shift  # Shift arguments to the left. $2 becomes $1, $3 becomes $2, etc.
    journalctl --since="$(date -d "$time_ago" '+%Y-%m-%d %H:%M:%S')" "$@"
}

#~~~~~~~~~~~~~~~~~~~~~~~#
## Virtualenv Utils    ##
#~~~~~~~~~~~~~~~~~~~~~~~#
VENV_DIR=venv

# create a virtualenv in ./VENV_DIR
alias c_venv="virtualenv -p python3 ${VENV_DIR}"

alias cs_venv="c_venv --system-site-packages"

# start a virtualenv in ./VENV_DIR
alias s_venv="source ${VENV_DIR}/bin/activate"

# end a virtualenv in ./VENV_DIR
alias e_venv="deactivate"

#~~~~~~~~~~~~~~~~~~~~~~~#
## FS Diff Utils       ##
#~~~~~~~~~~~~~~~~~~~~~~~#
# Usage:
# 1. Create a script.sh file with the content you want to execute
# 2. Run diff_sizes script.sh
# or
# 2. Run diff_sizes_and_dates script.sh
PRE_DU=sizes_before.du
POST_DU=sizes_after.du

diff_sizes() { du -ab | grep -Pv "^0\t" | grep -Pv "[0-9]+\t./(${PRE_DU})|(${POST_DU})" >${PRE_DU}; $1; du -ab | grep -Pv "^0\t" | grep -Pv "[0-9]+\t./(${PRE_DU})|(${POST_DU})+" >${POST_DU}; diff ${PRE_DU} ${POST_DU}; };

alias file_sizes_and_dates="find . -type f -exec ls -al {} + | awk {'printf(\"%8s\t%s %2s %5s %s\n\",\$5,\$6,\$7,\$8,\$9)'}"

diff_sizes_and_dates() { file_sizes_and_dates | grep -Pv "^\s*0\t" | grep -Pv " ./(${PRE_DU})|(${POST_DU})$" >${PRE_DU}; $1; file_sizes_and_dates | grep -Pv "^\s*0\t" | grep -Pv " ./(${PRE_DU})|(${POST_DU})$" >${POST_DU}; diff ${PRE_DU} ${POST_DU}; };

#~~~~~~~~~~~~~#
## SSH Utils ##
#~~~~~~~~~~~~~#
# keep retrying to connect to host until it's running again
# Usage
#   qq_ssh_sticky user@192.168.12.100
# Interactive oneliner
#   _sticky_ssh() { while true; do command ssh "$@"; [ $? -eq 0 ] && break || sleep 0.5; done; }

qq_ssh_sticky() {
  while true; do
    command ssh "$@"; [ $? -eq 0 ] && break || sleep 0.5;
  done;
}

#~~~~~~~~~~~~~#
## PDF Utils ##
#~~~~~~~~~~~~~#
# Usage
#   qq_pdf_shrink source.pdf destination.pdf
# Interactive oneliner
#   _pdf_shrink() { gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile=$2 $1; }

qq_pdf_shrink() {
  gs -sDEVICE=pdfwrite \
   -dCompatibilityLevel=1.4 \
   -dPDFSETTINGS=/ebook \
   -dNOPAUSE \
   -dQUIET \
   -dBATCH \
   -sOutputFile=$2 \
   $1;
}

#~~~~~~~~~~~~~~~~#
## Productivity ##
#~~~~~~~~~~~~~~~~#
# Usage
#   qq_alarm 400 200

qq_alarm() {   ( \speaker-test --frequency $1 --test sine )&   pid=$!;   \sleep 0.${2}s;   \kill -9 $pid; }

#~~~~~~~~~~~~#
## Security ##
#~~~~~~~~~~~~#
# Usage
#   qq_ls_cacert

qq_ls_cacert() {
  awk -v cmd='openssl x509 -noout -subject' \
   '/BEGIN/{close(cmd)};{print | cmd}' < /ETC/SSL/CERTS/CA-certificates.crt;
}

#~~~~~~~~~~~~#
## Docker ##
#~~~~~~~~~~~~#
# Usage: qq_docker_history IMAGE_TAG
qq_docker_image_layers() { docker history $@ --format "{{.CreatedBy}}" --no-trunc; }


####################################
## End of My Stuff: Walid Shouman ##
####################################

.gitconfig

# my gitconfig options
[user]
	email = my@email.com
	name = Walid Shouman
[alias]
  co   = checkout
  ci   = commit
  st   = status
  br   = branch
  dc   = diff --cached
  hist = log --pretty=format:\"%h %ad | %s%d [%an]\" --graph --date=short
  type = cat-file -t
  dump = cat-file -p

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Example: git fame Walid
# Description: display number of commits that are authored
#              by an author with the name including "Walid"
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
  fame = "!f() { git rev-list --all --count --author=\""$1"\"; }; f"

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Example: git contribution Walid
# Description: display the commits that are authored
#              by an author with the name including "Walid"
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
  contribution = "!f() { git shortlog --author=\""$1"\"; }; f"

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Example: git ag "cleanup"
# Description: TBD
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
  ag = "!f() { git log --all --grep=\""$1"\"; }; f"

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Example: git ag-author "cleanup" "Walid"
# Description: TBD, old comments: not working 
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
  ag-author = "!f() { git log -all --grep=\""$1"\" --author=\""$2"\"; }; f"

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Example: git branches
# Description: TBD
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
  branches = "!f() { git for-each-ref --sort=committerdate refs/remotes/ --format='%(HEAD) %(color:yellow)%(refname:short)%(color:reset) - %(color:red)%(objectname:short)%(color:reset) - %(contents:subject) - %(authorname) (%(color:green)%(committerdate:relative)%(color:reset))'; }; f"

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Example: git abbrev
# Description: TBD
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
  abbrev = "!f() { git -c 'user.cmdline=true' config --list --show-origin; }; f"

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# Example: git fame Walid
# Description: TBD, old comments: this one was a hack
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
#  fame = "!f() { git log | grep -o "$1" | wc -l; }; f"

.tmux.conf

# mouse setup
set -g mouse on
set-window-option -g xterm-keys on

# copy to clipboard: ctrl+b > [ > ctrl+space > select > y
bind -T copy-mode y send-keys -X copy-pipe-and-cancel 'xclip -in -selection clipboard'

.vimrc

" I recommend using ~/.vim/plugin/custom.vim insead of ~/.vimrc to avoid removing any other defaults like syntax highlighting

" If any value here is not working, then it's overwritten by some other plugin, usually an ftplugin, to check that out run:
"   verbose set shiftwidth ? 

" Allow saving of files as sudo when I forgot to start vim using sudo.
" use by typing :w!!
" follow https://stackoverflow.com/a/7078429
cmap w!! w !sudo tee > /dev/null %

" Show tabs and spaces, follow https://vi.stackexchange.com/a/430
set list
" short for set listchars
set lcs=tab:␉─,trail:␠,nbsp:⎵

" Use the following to change the tab width to 2 and use spaces
set tabstop=2 shiftwidth=2 expandtab

"set softtabstop=-1 " that could be useful based on https://stackoverflow.com/questions/56408989/set-tab-as-2-spaces-in-vimrc-but-still-set-to-4-spaces-when-editing-python-file#comment121718552_56409189

" after installing securemodelines.vim
"       from: https://www.vim.org/scripts/script.php?script_id=1876
"       to: ~/.vim/plugin/
let g:secure_modelines_allowed_items = [
            \ "syntax",
            \ "textwidth",   "tw",
            \ "softtabstop", "sts",
            \ "tabstop",     "ts",
            \ "shiftwidth",  "sw",
            \ "expandtab",   "et",   "noexpandtab", "noet",
            \ "filetype",    "ft",
            \ "foldmethod",  "fdm",
            \ "readonly",    "ro",   "noreadonly", "noro",
            \ "rightleft",   "rl",   "norightleft", "norl",
            \ "spell",
            \ "spelllang"
            \ ]
            
" Tab management
" Guide: https://www.techrepublic.com/blog/linux-and-open-source/use-tabs-to-open-multiple-files-in-vim/
" Source: https://superuser.com/a/1372732/682757
" tab navigation: Alt or Ctrl+Shift may not work in terminal:
" http://vim.wikia.com/wiki/Alternative_tab_navigation
" Tab navigation like Firefox: only 'open new tab' works in terminal
nnoremap <C-t>     :tabnew<CR>
inoremap <C-t>     <Esc>:tabnew<CR>
" move to the previous/next tabpage.
nnoremap <C-j> gT
nnoremap <C-k> gt
" Go to last active tab 
au TabLeave * let g:lasttab = tabpagenr()
nnoremap <silent> <c-n> :exe "tabn ".g:lasttab<cr>
vnoremap <silent> <c-n> :exe "tabn ".g:lasttab<cr>

map <C-h> :tabrewind<cr>
map <C-l> :tablast<cr>

map <C-x> :tabclose<cr>

" Install Prosession plugin (alongside with the core ObSession) to save vim sessions
"   cd ~/.vim/plugin
"   git clone git://github.com/tpope/vim-obsession.git
"   git clone git://github.com/dhruvasagar/vim-prosession.git
"   vim -u NONE -c "helptags vim-obsession/doc" -c q
"   vim -u NONE -c "helptags vim-prosession/doc" -c q

" Obsession usage: type ```:Obsess /optional/dir/or/session_name``` then load it ```vim -S session_name```
" Prosession usage: type ```:Prosession /dir/to/edit```, running vim from a pre-prosessioned will autoload the session
" Generic note: Close vim using ```:qa``` otherwise the last closed window/tab only will be saved


" Show file options above the command line
" For fuzzy searching multiple files
" Follow https://gist.github.com/csswizardry/9a33342dace4786a9fee35c73fa5deeb
set wildmenu

New_Ubuntu_Install.md

• update software till you finish the following steps

• enable receiving files over bluetooth

• from dash open personal file sharing

• check receives files in downloads folder over bluetooth

• check notify about received files

• system-settings:

• add Arabic/Japanese

• make changing language through Alt+Shift

• remove Keyboard settings->Shortcuts->Windows->Minimize Window

• Install Japanese -- choose Japanese Mozc (Google's) or Anthy (mature) from the text entry options

• Make English main regional format

• Enable workspaces

• Show the menus for a window->in the window's title bar

• When the led is closed do nothing

• Turn screen of when in active for never

• files:

• .bashrc: change HISTFILESIZE from 2000 to 20000

• change the history to append each line by line by adding the following lines in .bashrc

shopt -s histappend
PROMPT_COMMAND="history -a;$PROMPT_COMMAND"

• .bash_aliases: take a copy of any of the old ones

• install firefox extension:

• readlater

• install some apps

• git

• synaptic

• vim

• dconf-editor (edit system configurations)

• remove unused partitions/apps from launcher

• install nvidia's things either

• install prime-indicator -- if u ever the quickswitcher doesn't work ... and needs a real restart, try the following -- sudo prime-select nvidia -- sudo prime-select intel -- then try the quick switch (that solved it for me) or

• purge the proprietary driver

• install bumblebee

• start bootcharting

• sudo apt-get install bootchart pybootchartgui

• then reboot

• check them in /var/log/bootchart/*.png

• setup open in terminal

• sudo apt-get install nautilus-open-terminal

• then reset nautilus with: nautilus -q

• manage users/groups through ui

• install gnome-system-tools through the software center

• from start choose "Users and Groups"

• add custom apps to the dash -- nano ~/.local/share/applications/blender272.desktop -- type the following/edit where needed

[Desktop Entry]
Name=Blender 2.72
Comment=
Exec=/home/walid5/Documents/blender/blender-2.72-RC1-linux-glibc211-x86_64/blender
Icon=/home/walid5/Documents/blender/blender-2.72-RC1-linux-glibc211-x86_64/icons/48x48/apps/blender.png
Terminal=false
Type=Application
StartupNotify=true

-- check this for more info http://askubuntu.com/a/112812

• change the file association
  -- change the defaults.list in /usr/share/gnome/applications/defaults.list -> /etc/gnome/defaults.list
  sudo nano /etc/gnome/defaults.list -- add a line similar to the following (notice that we've used the blender272.desktop that we've just registered before)
  application/x-blender=blender272.desktop
  -- check this for more info http://askubuntu.com/questions/289337/how-can-i-change-file-association-globally -- someone used this xdg-mime and update-desktop-database http://crunchbang.org/forums/viewtopic.php?id=8451

• install makerware -- sudo apt-add-repository 'deb http://downloads.makerbot.com/makerware/ubuntu trusty main' -- sudo apt-get update -- sudo apt-get install makerware

• install sketchup using wine -- install wine (winex.x supports 64 and 32 arch, winex.x-amd64 supports only 64) -- add /DisableRubyAPI to the command in the desktop shortcut or use wine "/path/to/sketchup.exe" "/DisableRubyAPI" to open sketchup

• change desktop font (use get first if you're not sure), could dconf-editor for that -- gsettings set org.gnome.nautilus.desktop font 'Ubuntu Bold 10'

• change all fonts -- gsettings set org.gnome.desktop.interface font-name 'Ubuntu 9'

• install rabbitvcs -- sudo apt-get install rabbitvcs-nautilus-3.0 -- nautilus -q && nautilus &

• install systemc

• use the gist for that

• install etckeeper to track /etc changes

• follow this guide

Install tree

Usefull to watch directory contents

sudo apt-get install tree
# usage example
# tree Documents -L 2

Install xclip

Useful for clipboard interaction with the shell

sudo apt-get install xclip

Add the following to .bashrc

alias "c=xclip"
alias "v=xclip -o"

Now we can copy to clipboard using pwd| c and paste from it using cd `v`
ref: Stackoverflow answer for How can I copy the output of a command directly into my clipboard?

• setting environment variables in a better place than bashrc

• gedit /etc/environment

• add the lines u wish after PATH="/bla/bla/bla"

• Shorten the command line.   ref: Stackoverflow answer for How can I shorten my command line bash prompt

• Update the right click menu to use sublime: Optional. -- for that one should install nautilus actions then follow this tutorial

Install VIM plugins

• Download the securemodelines.vim from here
• Move it into .vim/plugin

python.vim

" Save this file in ~/.vim/after/ftplugin/python.vim
"  (to overwrite the settings of the file ~/.vim/ftplugin/python.vim)

" This is a more elaborate version of the sets in the custom.vim, follow https://stackoverflow.com/a/14174779/2730737
set shiftround  " Round indent to multiple of 'shiftwidth'
set smartindent " Do smart indenting when starting a new line
set autoindent  " Copy indent from current line, over to the new line

" Set the tab width
let s:tabwidth=2
exec 'set tabstop='    .s:tabwidth
exec 'set shiftwidth=' .s:tabwidth
exec 'set softtabstop='.s:tabwidth