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authorKarel Kočí <cynerd@email.cz>2017-10-17 07:59:09 +0200
committerKarel Kočí <cynerd@email.cz>2017-10-17 07:59:09 +0200
commit4555491b5fdb3f38c731e409c2f98b46ac675efa (patch)
tree80b2769cde260fd08642e828440a836cbad9d4b0 /2017-linuxdays
parent8f1a06dc1f65e0827a0f14e1193b01b97db52ad2 (diff)
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Some directory movements
Diffstat (limited to '2017-linuxdays')
-rw-r--r--2017-linuxdays/Makefile10
-rw-r--r--2017-linuxdays/pres.pdfbin0 -> 261771 bytes
-rw-r--r--2017-linuxdays/pres.tex475
-rw-r--r--2017-linuxdays/theme/cznic-cz.pdfbin0 -> 6109 bytes
-rw-r--r--2017-linuxdays/theme/cznic-en.pdfbin0 -> 6060 bytes
-rw-r--r--2017-linuxdays/theme/nicbottom.pdfbin0 -> 7132 bytes
-rw-r--r--2017-linuxdays/theme/nictop.pdfbin0 -> 12767 bytes
-rw-r--r--2017-linuxdays/theme/theme.tex42
-rw-r--r--2017-linuxdays/theme/title.tex14
9 files changed, 541 insertions, 0 deletions
diff --git a/2017-linuxdays/Makefile b/2017-linuxdays/Makefile
new file mode 100644
index 0000000..0c3c782
--- /dev/null
+++ b/2017-linuxdays/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/2017-linuxdays/pres.pdf b/2017-linuxdays/pres.pdf
new file mode 100644
index 0000000..c937487
--- /dev/null
+++ b/2017-linuxdays/pres.pdf
Binary files differ
diff --git a/2017-linuxdays/pres.tex b/2017-linuxdays/pres.tex
new file mode 100644
index 0000000..a2f5f87
--- /dev/null
+++ b/2017-linuxdays/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/2017-linuxdays/theme/cznic-cz.pdf b/2017-linuxdays/theme/cznic-cz.pdf
new file mode 100644
index 0000000..8434d23
--- /dev/null
+++ b/2017-linuxdays/theme/cznic-cz.pdf
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diff --git a/2017-linuxdays/theme/cznic-en.pdf b/2017-linuxdays/theme/cznic-en.pdf
new file mode 100644
index 0000000..6208787
--- /dev/null
+++ b/2017-linuxdays/theme/cznic-en.pdf
Binary files differ
diff --git a/2017-linuxdays/theme/nicbottom.pdf b/2017-linuxdays/theme/nicbottom.pdf
new file mode 100644
index 0000000..2bc41c7
--- /dev/null
+++ b/2017-linuxdays/theme/nicbottom.pdf
Binary files differ
diff --git a/2017-linuxdays/theme/nictop.pdf b/2017-linuxdays/theme/nictop.pdf
new file mode 100644
index 0000000..153c065
--- /dev/null
+++ b/2017-linuxdays/theme/nictop.pdf
Binary files differ
diff --git a/2017-linuxdays/theme/theme.tex b/2017-linuxdays/theme/theme.tex
new file mode 100644
index 0000000..12bb169
--- /dev/null
+++ b/2017-linuxdays/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/2017-linuxdays/theme/title.tex b/2017-linuxdays/theme/title.tex
new file mode 100644
index 0000000..d4de9f5
--- /dev/null
+++ b/2017-linuxdays/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