diff options
| -rw-r--r-- | linuxdays2017/Makefile | 10 | ||||
| -rw-r--r-- | linuxdays2017/pres.tex | 475 | ||||
| -rw-r--r-- | linuxdays2017/theme/cznic-cz.pdf | bin | 0 -> 6109 bytes | |||
| -rw-r--r-- | linuxdays2017/theme/cznic-en.pdf | bin | 0 -> 6060 bytes | |||
| -rw-r--r-- | linuxdays2017/theme/nicbottom.pdf | bin | 0 -> 7132 bytes | |||
| -rw-r--r-- | linuxdays2017/theme/nictop.pdf | bin | 0 -> 12767 bytes | |||
| -rw-r--r-- | linuxdays2017/theme/theme.tex | 42 | ||||
| -rw-r--r-- | linuxdays2017/theme/title.tex | 14 |
8 files changed, 541 insertions, 0 deletions
diff --git a/linuxdays2017/Makefile b/linuxdays2017/Makefile new file mode 100644 index 0000000..0c3c782 --- /dev/null +++ b/linuxdays2017/Makefile @@ -0,0 +1,10 @@ +FILE=pres + +$(FILE).pdf: $(FILE).tex $(patsubst %.svg,%.pdf,$(wildcard *.svg)) + pdflatex -shell-escape $< + +%.pdf: %.svg + inkscape -D -z --file=$< --export-pdf=$@ --export-latex + +clean: + ls | grep -v -E "($(FILE).tex|Makefile|theme|svg|png|eps)$$" | xargs rm -rf diff --git a/linuxdays2017/pres.tex b/linuxdays2017/pres.tex new file mode 100644 index 0000000..a2f5f87 --- /dev/null +++ b/linuxdays2017/pres.tex @@ -0,0 +1,475 @@ +\documentclass{beamer} +\usepackage{lmodern} +\usepackage[czech]{babel} +\usepackage[utf8x]{inputenc} +\usepackage[T1]{fontenc} +\usepackage{textpos} +\usepackage{tikz,calc} +\usepackage{graphicx} +\usepackage{wrapfig} +\usepackage{color} +\usepackage{mathtools} +\usepackage{hyperref} +\usepackage{epstopdf} +\usepackage{amsmath} +\usepackage{minted} +\hypersetup{ + colorlinks, + citecolor=black, + filecolor=black, + linkcolor=black, + urlcolor=black +} +\usepackage{pdflscape} + +\input{theme/theme.tex} + +\title{Tipy a triky nejenom v shellu nejenom pro programátory} +\author{Karel Kočí} +\date{8.10.2017} + +\AtBeginSection[]{ + \begin{frame} + \tableofcontents[currentsection] + \end{frame} +} + +\begin{document} + +\input{theme/title.tex} + +\begin{frame}[fragile]{O čem to bude?} + \begin{minted}[frame=lines]{shell} +sed 's/[^\;]*\;//' hist | tr ' ' '\n' | \ + grep -vE '^(-|\||$)' | sort | uniq -c | \ + sort -nr > notes/tatnppvl.result + \end{minted} + \begin{tabular}{r|l|r|l|r|l} \hline + 3004 & ls & 2391 & cd & 2225 & git \\ \hline + 1350 & v & 911 & sudo & 608 & tig \\ \hline + 458 & emerge & 410 & push & 405 & ssh \\ \hline + 393 & .. & 381 & gst & 372 & ci \\ \hline + 320 & add & 303 & vim & 285 & make \\ \hline + 285 & grep & 282 & rm & 247 & man \\ \hline + 203 & . & 191 & co & 189 & sed \\ \hline + 172 & @world & 159 & ./build\_repo.sh & 156 & omnia \\ \hline + 150 & updater & 148 & mpv & 140 & turris/openwrt \\ \hline + 138 & mount & 124 & cp & 120 & test \\ \hline + 119 & pull & 112 & ip & 109 & turtetris/Makefile \\ \hline + \end{tabular} +\end{frame} + +\section[Section]{Jen shell} + +\begin{frame}[fragile]{MAN MAN MAN MAN MAN} + \begin{minted}[frame=lines]{shell} +man man +man exit +man 3 exit + \end{minted} + Z man man: + \begin{enumerate} + \item Spustitelný program nebo shell příkaz + \item Volání systému (funkce z kernelu) + \item Knihovní volání (funkce poskytované knihovnami) + \item Speciální soubory (obvykle soubory z /dev) + \item Souborové formáty a konvence (například /etc/passwd) + \item Hry + \item Různorodé (Konvence, makra a pod.) + \item Příkazy pro systémovou administraci (obvykle sbin) + \end{enumerate} +\end{frame} + +\begin{frame}[fragile]{Náhled na soubory} + \begin{block}{ll} + Pro přístupová práva, vlastníky i velikost. + \begin{minted}[frame=lines]{shell} +alias ll='ls -lh' + \end{minted} + \end{block} + \begin{block}{tree} + Pro stromovou strukturu. + \end{block} +\end{frame} + +\begin{frame}[fragile]{Připisované soubory} + \begin{block}{tail -f} + \begin{minted}[frame=lines]{shell} +sudo tail -f /var/log/messages + \end{minted} + \end{block} +\end{frame} + +\begin{frame}[fragile]{Opakované spuštění} + \begin{block}{while true; do sleep 1; \emph{command}; done} + Pro sledování a pod. Například ip address. + \end{block} + \begin{block}{dorepeat} + \begin{minted}[frame=lines]{shell} +dorepeat() { + while true; do + "$@" + sleep 1 + echo + done +} + \end{minted} + \end{block} +\end{frame} + +\begin{frame}[fragile]{Hledání souborů} + \begin{block}{find -name -delete} + \begin{minted}[frame=lines]{shell} +find -name *elf* +find -name *.orig -delete + \end{minted} + \end{block} +\end{frame} + +\begin{frame}[fragile]{Hledání souborů podle obsahu} + \begin{block}{grep -Rn PATTERN} + \begin{minted}[frame=lines]{shell} +grep -Rn elfutils +grep -RnE 'elf-?utils' + \end{minted} + \end{block} +\end{frame} + +\begin{frame}[fragile]{Hledání podle obsahu ve specifických souborech} + \begin{minted}[frame=lines]{shell} +find -name Makefile | xargs grep -Rn elfutils + \end{minted} +\end{frame} + +\begin{frame}[fragile]{Náhodné heslo} + \begin{block}{genpasswd} + \begin{minted}[frame=lines]{shell} +genpasswd() { + local l=$1 + [ -n "$l" ] || l=16 + tr -dc A-Za-z0-9_ < /dev/urandom \ + | head -c "$l" | xargs +} + \end{minted} + \end{block} +\end{frame} + +\section[Section]{X server} + +\begin{frame}[fragile]{Clipboard} + \begin{block}{xclip -selection clipboard} + \begin{minted}[frame=lines]{shell} +cat .ssh/id_rsa.pub | xclip -selection clipboard + \end{minted} + \end{block} + \begin{block}{clip} + \begin{minted}[frame=lines]{shell} +clip() { + # Note: printf is magic to remove trailing new lines + printf %s "$(cat)" | xclip -selection clipboard +} + \end{minted} + \end{block} +\end{frame} + +\begin{frame}[fragile]{Screenshot} + \begin{block}{xshot} + \begin{minted}[frame=lines]{shell} +xshot() { + import -window "$(xdotool selectwindow)" \ + ~/xshot_$(date +%F_%H%M%S_%N).png +} + \end{minted} + \end{block} +\end{frame} + +\section[Section]{Git} + +\begin{frame}[fragile]{Git aliases} + \begin{block}{git co ci br wt} + \textasciitilde/.gitconfig + \begin{minted}[frame=lines]{ini} +[alias] + co = checkout + ci = commit + st = status + br = branch + wt = worktree + \end{minted} + \end{block} + \begin{block}{gst} + \begin{minted}[frame=lines]{shell} +alias gst='git status' + \end{minted} + \end{block} +\end{frame} + +\begin{frame}[fragile]{Verbose commits} + \textasciitilde/.gitconfig + \begin{minted}[frame=lines]{ini} +[commit] + verbose = true + \end{minted} + \begin{verbatim} +# Changes to be committed: +# modified: utils/localrepo +# ------------------------ >8 ------------------------ +diff --git a/utils/localrepo b/utils/localrepo + HELP_DESCRIPTION = """ +- Local opkg repository management script. ++ Local opkg repository management tool. + """ + \end{verbatim} +\end{frame} + +\begin{frame}[fragile]{git worktree} + \begin{block}{git worktree add} + \begin{minted}[frame=lines]{shell} +git branch work-todo +git worktree add ../project-work-todo work-todo + \end{minted} + \end{block} + \begin{block}{git worktree prune} + \begin{minted}[frame=lines]{shell} +rm -rf ../project-work-done +git worktree prune + \end{minted} + \end{block} +\end{frame} + +\begin{frame}[fragile]{Git hash $\to$ clipboard} + \begin{block}{gitclip} + \begin{minted}[frame=lines]{shell} +gitclip() { + [ -n "$1" ] && local CMT="$1" || local CMT=HEAD + git rev-parse "$CMT"| clip +} + \end{minted} + \end{block} + \begin{block}{gitmclip} + \begin{minted}[frame=lines]{shell} +gitmclip() { + [ -n "$1" ] && local CMT="$1" || local CMT=HEAD + git log --format=%B -n 1 "$CMT" | clip +} + \end{minted} + \end{block} +\end{frame} + +\begin{frame}[fragile]{gitbmerge} + \begin{minted}[frame=lines]{shell} +gitbmerge() { + ( + set -e + local WT="$(git worktree list \ + | sed -nE "/\[$1\]/{s/([^ ]+) .*/\1/p}")" + if [ -n "$WT" ]; then + rm -r "$WT" + git worktree prune + fi + git merge --ff-only "$1" && \ + git push && git branch -d "$1" \ + && git push origin :"$1" + ) +} + \end{minted} +\end{frame} + +\section[Section]{Stahování} + +\begin{frame}[fragile]{Zpracování obsahu pomocí shellu} + \begin{block}{curl HREF | tar -xzf -} + \begin{minted}[frame=lines]{shell} +curl http://repo.turris.cz/turris/OpenWrt-SDK.tar.bz2 \ + | tar -xzf - + \end{minted} + \end{block} + \begin{block}{curl -s HREF | grep -n} + \begin{minted}[frame=lines]{shell} +curl -s http://repo.turris.cz/turris/lists/base.lua \ + | grep -n updater-ng + \end{minted} + \end{block} + Nikdy! \begin{verbatim}curl HREF | sh -s\end{verbatim} +\end{frame} + +\begin{frame}[fragile]{Stažení všeho ze serveru} + \begin{block}{wget -r --no-parent (-l1)} + \begin{minted}[frame=lines]{shell} +wget -r --no-parent \ + http://repo.turris.cz/turris/packages/ + \end{minted} + \end{block} +\end{frame} + +\section[Section]{SSH} + +\begin{frame}[fragile]{Spuštění příkazu na několika hostech} + \begin{minted}[frame=lines]{shell} +ROUTERS="1 159 189 156 104 199 135 171 244 172" +I=0 +for R in $ROUTERS; do + echo "=== Runnining on 192.168.1.$R ===" + + ssh -i ~/router root@192.168.1.$R -- $@ + + #scp -i ~/router user.lua \ + # root@192.168.1.$R:/etc/updater/user.lua + + #ssh -i ~/router root@192.168.1.$R \ + # -- uci set turtetris.line=$I + #I=$(expr $I + 1) +done + \end{minted} +\end{frame} + +\begin{frame}[fragile]{Port forward} + \begin{minted}[frame=lines]{shell} +ssh host -L 8484:localhost:8384 + \end{minted} +\end{frame} + +\begin{frame}[fragile]{SOCKS proxy} + \begin{minted}[frame=lines]{shell} +ssh host -D 8123 + \end{minted} +\end{frame} + +\begin{frame}[fragile]{Trvalé připojení} + \begin{block}{cmd} + \begin{minted}[frame=lines]{shell} +ssh host -o ControlMaster=auto \ + -o ControlPath=$MCNF_DIR/.ssh_access/%r@%h:%p \ + -o ControlPersist=600 + \end{minted} + \end{block} + \begin{block}{ssh config} + \begin{minted}[frame=lines]{shell} +Host * + ControlMaster auto + ControlPath .cache/ssh/%r@%h:%p + ControlPersist 600 + \end{minted} + \end{block} +\end{frame} + +\section[Section]{Bash (Zsh) a emulátor terminálu} + +\begin{frame}[fragile]{Prompt a exit code} + \begin{minted}[frame=lines]{shell} +PROMPT_COMMAND=' +EC=$? +if [[ $EC < 0 ]]; then + echo -e "\e[1;31m"EXIT: $EC"\e[0m" +elif [[ $EC > 0 ]]; then + echo -e "\e[1;33m"EXIT: $EC"\e[0m" +fi' + \end{minted} +\end{frame} + +\begin{frame}[fragile]{Xterm (urxvt) title} + \begin{minted}[frame=lines]{shell} +function settitle { + echo -ne "\033]0;`whoami`@`hostname`:`pwd`\007" +} +case "$TERM" in + xterm*|*rxvt*) + trap 'settitle' DEBUG + ;; +esac + \end{minted} +\end{frame} + +\begin{frame}[fragile]{Zsh upozornění od dlouho-běžícího procesu} + \tiny + \begin{minted}[frame=lines]{shell} +lrbell_duration=15 +lrbell_timestamp=$EPOCHSECONDS +lrbell_window_id=0x0 +lrbell_active_window_id() { + xprop -root 32x '\t$0' _NET_ACTIVE_WINDOW | cut -f 2 +} +lrbell_begin() { + lrbell_timestamp=$EPOCHSECONDS + lrbell_message="`pwd`: $1" + if [ -n "$DISPLAY" ]; then + lrbell_window_id=$(lrbell_active_window_id) + fi +} +lrbell_end() { + (( $EPOCHSECONDS - $lrbell_timestamp < $lrbell_duration )) && return 0 + print -n '\a' + if [ -n "$DISPLAY" ] && [ -n "$lrbell_window_id" ]; then + if [ "$(lrbell_active_window_id)" != "$lrbell_window_id" ]; then + notify-send "Command finished" "$lrbell_message" + fi + fi +} +add-zsh-hook preexec lrbell_begin +add-zsh-hook precmd lrbell_end + \end{minted} + \url{https://github.com/rcaloras/bash-preexec} +\end{frame} + +\section[Section]{Bash doplňování} + +\begin{frame}[fragile]{Jednoduchý příklad} + \scriptsize + \begin{minted}[frame=lines]{shell} +_sterm() { + local cur prev + _init_completion || return + COMPREPLY=() + local ops="-h --help -c -d -e -n -r -s -v" + case "$prev" in + -d|-r) + ;; + -s) + local speeds="2400 4800 9600 19200 38400 57600 115200 230400" + COMPREPLY+=($(compgen -W "${speeds}" -- ${cur})) + ;; + *) + COMPREPLY+=($(compgen -W "${ops}" -- ${cur})) + ;; + esac +} +complete -o default -F _sterm sterm + \end{minted} +\end{frame} + +\begin{frame}[fragile]{gitbmerge doplňování} + \scriptsize + \begin{minted}[frame=lines]{shell} +_gitbmerge() { + local cur prev + _init_completion || return + [ $COMP_CWORD -gt 1 ] && return # Complete only single dependency + COMPREPLY=() + local GDIR="$(pwd)" + while [ ! -d "$GDIR/.git" ]; do + [ -z "$GDIR" ] && return + GDIR="${GDIR%/*}" + done + GDIR="$GDIR/.git" + [ -f "$GDIR" ] && GDIR="$(cat "$GDIR")" + [ -d "$GDIR/refs/heads" ] || return + local ops="" + for B in "$GDIR"/refs/heads/*; do + ops="$ops ${B#$GDIR/refs/heads/}" + done + COMPREPLY+=($(compgen -W "${ops}" -- ${cur})) +} +complete -F _gitbmerge gitbmerge + \end{minted} +\end{frame} + + +\begin{frame} + \Huge A jaké tipy máte vy? + + \Large Děkuji za pozornost. + + % Poznamka ze vse je take pro zsh v mem gitu +\end{frame} + +\end{document} diff --git a/linuxdays2017/theme/cznic-cz.pdf b/linuxdays2017/theme/cznic-cz.pdf Binary files differnew file mode 100644 index 0000000..8434d23 --- /dev/null +++ b/linuxdays2017/theme/cznic-cz.pdf diff --git a/linuxdays2017/theme/cznic-en.pdf b/linuxdays2017/theme/cznic-en.pdf Binary files differnew file mode 100644 index 0000000..6208787 --- /dev/null +++ b/linuxdays2017/theme/cznic-en.pdf diff --git a/linuxdays2017/theme/nicbottom.pdf b/linuxdays2017/theme/nicbottom.pdf Binary files differnew file mode 100644 index 0000000..2bc41c7 --- /dev/null +++ b/linuxdays2017/theme/nicbottom.pdf diff --git a/linuxdays2017/theme/nictop.pdf b/linuxdays2017/theme/nictop.pdf Binary files differnew file mode 100644 index 0000000..153c065 --- /dev/null +++ b/linuxdays2017/theme/nictop.pdf diff --git a/linuxdays2017/theme/theme.tex b/linuxdays2017/theme/theme.tex new file mode 100644 index 0000000..12bb169 --- /dev/null +++ b/linuxdays2017/theme/theme.tex @@ -0,0 +1,42 @@ +% vim: ft=tex + +\definecolor{cznicblue}{RGB}{0,56,145} +\definecolor{cznicred}{RGB}{204,18,38} + +\setbeamertemplate{frametitle}{ + \begin{textblock}{100}[0,0](0.0,1.1) + \insertframetitle + \end{textblock} +} + +\defbeamertemplate*{footline}{CZ.NIC}{ + \begin{beamercolorbox}[wd=\paperwidth,ht=2.5ex,dp=1.125ex, + leftskip=.3cm,rightskip=.3cm plus1fil]{bottom} + + \parbox{\linewidth}{\vspace*{-8pt}\hfill\insertpagenumber/\inserttotalframenumber} + + \includegraphics[width=8cm,keepaspectratio]{theme/nicbottom.pdf} + \hspace{0.5cm} + \includegraphics[width=3.5cm,keepaspectratio]{theme/cznic-cz.pdf} + \end{beamercolorbox} +} + +\defbeamertemplate*{title page}{CZ.NIC}[1][]{ + \usebeamerfont{title}\usebeamercolor[fg]{title}\inserttitle\par + \usebeamerfont{subtitle}\usebeamercolor[fg]{subtitle}\insertsubtitle\par + \bigskip + \usebeamerfont{author}\usebeamercolor[fg]{author}\insertauthor\par + \usebeamerfont{institute}\usebeamercolor[fg]{institute}\insertinstitute\par + % Commenting out following lines hides date from first slide + \usebeamerfont{date}\usebeamercolor[fg]{date}\insertdate\par + \usebeamercolor[fg]{titlegraphic}\inserttitlegraphic +} + +\setbeamercolor{structure}{fg=cznicred} +\setbeamercolor{title}{fg=cznicblue} +\setbeamercolor{subtitle}{fg=cznicred} +\setbeamercolor{frametitle}{fg=cznicblue} +\setbeamercolor{author}{fg=cznicblue} +\setbeamercolor{date}{fg=cznicblue} + +\beamertemplatenavigationsymbolsempty diff --git a/linuxdays2017/theme/title.tex b/linuxdays2017/theme/title.tex new file mode 100644 index 0000000..d4de9f5 --- /dev/null +++ b/linuxdays2017/theme/title.tex @@ -0,0 +1,14 @@ +% vim: ft=tex + +\begingroup +\setbeamertemplate{headline} +{ + \begin{beamercolorbox}[wd=\paperwidth,ht=1.5cm,dp=1.125ex, + leftskip=.3cm,rightskip=.3cm plus1fil]{top} + \includegraphics[width=12cm,keepaspectratio]{theme/nictop.pdf} + \end{beamercolorbox} +} + +\frame{\titlepage} + +\endgroup |