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<ol class="chapter"><li class="chapter-item expanded affix "><a href="../intro.html">Introduction</a></li><li class="chapter-item expanded "><a href="../tools/index.html"><strong aria-hidden="true">1.</strong> Tools</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../tools/zsh.html"><strong aria-hidden="true">1.1.</strong> zsh</a></li><li class="chapter-item expanded "><a href="../tools/bash.html"><strong aria-hidden="true">1.2.</strong> bash</a></li><li class="chapter-item expanded "><a href="../tools/fish.html"><strong aria-hidden="true">1.3.</strong> fish</a></li><li class="chapter-item expanded "><a href="../tools/tmux.html"><strong aria-hidden="true">1.4.</strong> tmux</a></li><li class="chapter-item expanded "><a href="../tools/git.html"><strong aria-hidden="true">1.5.</strong> git</a></li><li class="chapter-item expanded "><a href="../tools/awk.html"><strong aria-hidden="true">1.6.</strong> awk</a></li><li class="chapter-item expanded "><a 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Profile</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../trace_profile/strace.html"><strong aria-hidden="true">3.1.</strong> strace</a></li><li class="chapter-item expanded "><a href="../trace_profile/ltrace.html"><strong aria-hidden="true">3.2.</strong> ltrace</a></li><li class="chapter-item expanded "><a href="../trace_profile/perf.html"><strong aria-hidden="true">3.3.</strong> perf</a></li><li class="chapter-item expanded "><a href="../trace_profile/oprofile.html"><strong aria-hidden="true">3.4.</strong> OProfile</a></li><li class="chapter-item expanded "><a href="../trace_profile/time.html"><strong aria-hidden="true">3.5.</strong> time</a></li></ol></li><li class="chapter-item expanded "><a href="../binary/index.html"><strong aria-hidden="true">4.</strong> Binary</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../binary/od.html"><strong aria-hidden="true">4.1.</strong> od</a></li><li class="chapter-item expanded "><a href="../binary/xxd.html"><strong aria-hidden="true">4.2.</strong> xxd</a></li><li class="chapter-item expanded "><a href="../binary/readelf.html"><strong aria-hidden="true">4.3.</strong> readelf</a></li><li class="chapter-item expanded "><a href="../binary/objdump.html"><strong aria-hidden="true">4.4.</strong> objdump</a></li><li class="chapter-item expanded "><a href="../binary/nm.html"><strong aria-hidden="true">4.5.</strong> nm</a></li></ol></li><li class="chapter-item expanded "><a href="../development/index.html"><strong aria-hidden="true">5.</strong> Development</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../development/c++filt.html"><strong aria-hidden="true">5.1.</strong> c++filt</a></li><li class="chapter-item expanded "><a href="../development/c++.html"><strong aria-hidden="true">5.2.</strong> c++</a></li><li class="chapter-item expanded "><a href="../development/glibc.html"><strong aria-hidden="true">5.3.</strong> glibc</a></li><li 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aria-hidden="true">6.2.</strong> coredump</a></li><li class="chapter-item expanded "><a href="../linux/ptrace_scope.html"><strong aria-hidden="true">6.3.</strong> ptrace_scope</a></li><li class="chapter-item expanded "><a href="../linux/cryptsetup.html"><strong aria-hidden="true">6.4.</strong> cryptsetup</a></li><li class="chapter-item expanded "><a href="../linux/swap.html"><strong aria-hidden="true">6.5.</strong> swap</a></li></ol></li><li class="chapter-item expanded "><a href="../network/index.html"><strong aria-hidden="true">7.</strong> Network</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../network/tcpdump.html"><strong aria-hidden="true">7.1.</strong> tcpdump</a></li></ol></li><li class="chapter-item expanded "><a href="../web/index.html"><strong aria-hidden="true">8.</strong> Web</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../web/html.html"><strong aria-hidden="true">8.1.</strong> html</a></li></ol></li><li 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<h1 id="pacman1"><a class="header" href="#pacman1">pacman(1)</a></h1>
<h2 id="remote-package-repositories"><a class="header" href="#remote-package-repositories">Remote package repositories</a></h2>
<pre><code class="language-text">pacman -Sy refresh package database
pacman -S <pkg> install pkg
pacman -Ss <regex> search remote package database
pacman -Si <pkg> get info for pkg
pacman -Su upgrade installed packages
pacman -Sc clean local package cache
</code></pre>
<h2 id="remove-packages"><a class="header" href="#remove-packages">Remove packages</a></h2>
<pre><code class="language-text">pacman -Rsn <pkg> uninstall package and unneeded deps + config files
</code></pre>
<h2 id="local-package-database"><a class="header" href="#local-package-database">Local package database</a></h2>
<p>Local package database of installed packages.</p>
<pre><code class="language-text">pacman -Q list all installed packages
pacman -Qs <regex> search local package database
pacman -Ql <pkg> list files installed by pkg
pacman -Qo <file> query package that owns file
pacman -Qe only list explicitly installed packages
</code></pre>
<h2 id="local-file-database"><a class="header" href="#local-file-database">Local file database</a></h2>
<p>Local file database which allows to search packages owning certain files.
Also searches non installed packages, but database must be synced.</p>
<pre><code class="language-text">pacman -Fy refresh file database
pacman -Fl <pkg> list files in pkg (must not be installed)
pacman -Fx <regex> search
</code></pre>
<h2 id="hacks"><a class="header" href="#hacks">Hacks</a></h2>
<p>Uninstall all orphaned packages (including config files) that were installed as
dependencies.</p>
<pre><code class="language-text">pacman -Rsn $(pacman -Qqtq)
</code></pre>
<p>List explicitly installed packages that are not required as dependency by any
package and sort by size.</p>
<pre><code class="language-text">pacman -Qetq | xargs pacman -Qi |
awk '/Name/ { name=$3 }
/Installed Size/ { printf "%8.2f%s %s\n", $4, $5, name }' |
sort -h
</code></pre>
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