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HongsterPrevent overlapping cron jobs using `flock`<a href="https://tech.mrleong.net/prevent-concurrent-cron-jobs-using-flock" rel="nofollow noopener" translate="no" target="_blank">https://tech.mrleong.net/prevent-concurrent-cron-jobs-using-flock</a><a href="https://fosstodon.org/tags/cli" class="mention hashtag" rel="nofollow noopener" target="_blank">#cli</a> <a href="https://fosstodon.org/tags/ShellScripts" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShellScripts</a> <a href="https://fosstodon.org/tags/command" class="mention hashtag" rel="nofollow noopener" target="_blank">#command</a> <a href="https://fosstodon.org/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#linux</a> <a href="https://fosstodon.org/tags/cronjob" class="mention hashtag" rel="nofollow noopener" target="_blank">#cronjob</a>

R.L. Dane :Debian: :OpenBSD: 🍵 :MiraLovesYou:In the helpful shell functions department:(Requires <code>bc</code> to be installed)<pre><code>load() { local load=$(uptime |sed -E "s/^.*load averages?: //; s/,.*$//") local uname="$(uname)" local cpus if [[ $1 == -q ]]; then echo "$load" elif [[ $1 == -i ]]; then echo "$load + 0.5" |bc -l |cut -f1 -d. else case "$uname" in Linux) cpus=$(grep -c ^processor /proc/cpuinfo);; *BSD) cpus=$(sysctl hw.ncpu |tr -dc "0-9\n");; *) warn "load(): assuming 1 cpu, don't know how to get the number in \"$uname\"" cpus=1;; esac local loadPerCPU=$(echo "scale=3; $load / $cpus" |bc -l |sed 's/^\./0./') echo "$load ($loadPerCPU per processor ($cpus))" fi } </code></pre><a href="https://polymaths.social/tags/shellscripting" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShellScripting</a> <a href="https://polymaths.social/tags/unixshell" class="mention hashtag" rel="nofollow noopener" target="_blank">#UnixShell</a> <a href="https://polymaths.social/tags/shellscripts" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShellScripts</a> <a href="https://polymaths.social/tags/bash" class="mention hashtag" rel="nofollow noopener" target="_blank">#bash</a> <a href="https://polymaths.social/tags/ksh" class="mention hashtag" rel="nofollow noopener" target="_blank">#ksh</a> <a href="https://polymaths.social/tags/sh" class="mention hashtag" rel="nofollow noopener" target="_blank">#sh</a>

BenjaminI have pushed two example bash scripts to <a href="https://codeberg.org/blindcoder/ShareTheBasics/src/branch/main/Shellscripts" rel="nofollow noopener" translate="no" target="_blank">https://codeberg.org/blindcoder/ShareTheBasics/src/branch/main/Shellscripts</a> One is a template bash script that I use for most of my scripts. The other is how I use file locking in shellscripts, works across multiple hosts access the same filesystem.<a href="https://toot.berlin/tags/ShareTheBasics" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShareTheBasics</a> <a href="https://toot.berlin/tags/bash" class="mention hashtag" rel="nofollow noopener" target="_blank">#bash</a> <a href="https://toot.berlin/tags/shellscripts" class="mention hashtag" rel="nofollow noopener" target="_blank">#shellscripts</a>

Karl Voit :emacs: :orgmode:<a href="https://graz.social/tags/Nixshell" class="mention hashtag" rel="nofollow noopener" target="_blank">#Nixshell</a> isn’t executing its Python/poetry command and doesn’t exit <a href="https://discourse.nixos.org/t/nix-shell-isnt-executing-its-python-poetry-command-and-doesnt-exit/58452" rel="nofollow noopener" translate="no" target="_blank">https://discourse.nixos.org/t/nix-shell-isnt-executing-its-python-poetry-command-and-doesnt-exit/58452</a>Anyone interested in contributing to this thread?<a href="https://graz.social/tags/NixOS" class="mention hashtag" rel="nofollow noopener" target="_blank">#NixOS</a> <a href="https://graz.social/tags/Nix" class="mention hashtag" rel="nofollow noopener" target="_blank">#Nix</a> <a href="https://graz.social/tags/poetry" class="mention hashtag" rel="nofollow noopener" target="_blank">#poetry</a> <a href="https://graz.social/tags/shellscripts" class="mention hashtag" rel="nofollow noopener" target="_blank">#shellscripts</a>

Peter N. M. HansteenOpenBSD now enforcing no invalid NUL characters in shell scripts <a href="https://www.undeadly.org/cgi?action=article;sid=20240924105732" rel="nofollow noopener" translate="no" target="_blank">https://www.undeadly.org/cgi?action=article;sid=20240924105732</a> <a href="https://mastodon.social/tags/openbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#openbsd</a> <a href="https://mastodon.social/tags/shells" class="mention hashtag" rel="nofollow noopener" target="_blank">#shells</a> <a href="https://mastodon.social/tags/shellscripts" class="mention hashtag" rel="nofollow noopener" target="_blank">#shellscripts</a> <a href="https://mastodon.social/tags/ksh" class="mention hashtag" rel="nofollow noopener" target="_blank">#ksh</a> <a href="https://mastodon.social/tags/development" class="mention hashtag" rel="nofollow noopener" target="_blank">#development</a> <a href="https://mastodon.social/tags/nul" class="mention hashtag" rel="nofollow noopener" target="_blank">#nul</a> <a href="https://mastodon.social/tags/nulchar" class="mention hashtag" rel="nofollow noopener" target="_blank">#nulchar</a> <a href="https://mastodon.social/tags/nulbyte" class="mention hashtag" rel="nofollow noopener" target="_blank">#nulbyte</a> <a href="https://mastodon.social/tags/invalidchar" class="mention hashtag" rel="nofollow noopener" target="_blank">#invalidchar</a>

Jon "The Nice Guy" SpriggsI wrote a blog post: "Why (and how) I’ve started writing my <a href="https://toot.io/tags/ShellScripts" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShellScripts</a> in <a href="https://toot.io/tags/Python" class="mention hashtag" rel="nofollow noopener" target="_blank">#Python</a>" <a href="https://jon.sprig.gs/blog/post/8025" rel="nofollow noopener" translate="no" target="_blank">https://jon.sprig.gs/blog/post/8025</a>

R. L. Dane :debian: :openbsd:Hey <a href="https://fosstodon.org/tags/AskFedi" class="mention hashtag" rel="nofollow noopener" target="_blank">#AskFedi</a> (<a href="https://fosstodon.org/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a> / <a href="https://fosstodon.org/tags/UNIX" class="mention hashtag" rel="nofollow noopener" target="_blank">#UNIX</a> / <a href="https://fosstodon.org/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#BSD</a> users in particular),Does anyone have a preferred front-end to keepassxc-cli? I know there's a rofi interface shell script, but I honestly found it kind of clunky.This is something that could be very easily and nicely shell scripted, and I wanted to ask if anyone knows of one out there already before I re-invented the wheel.<a href="https://fosstodon.org/tags/Keepass" class="mention hashtag" rel="nofollow noopener" target="_blank">#Keepass</a> <a href="https://fosstodon.org/tags/KeepassXC" class="mention hashtag" rel="nofollow noopener" target="_blank">#KeepassXC</a> <a href="https://fosstodon.org/tags/ShellScripting" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShellScripting</a> <a href="https://fosstodon.org/tags/ShellScript" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShellScript</a> <a href="https://fosstodon.org/tags/ShellScripts" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShellScripts</a>

sergio_101for like more than 30 years, i have kinda skirted writing serious <a href="https://mastodon.social/tags/ShellScripts" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShellScripts</a>, getting good with <a href="https://mastodon.social/tags/awk" class="mention hashtag" rel="nofollow noopener" target="_blank">#awk</a> and <a href="https://mastodon.social/tags/sed" class="mention hashtag" rel="nofollow noopener" target="_blank">#sed</a> , and getting really good with <a href="https://mastodon.social/tags/LaTeX" class="mention hashtag" rel="nofollow noopener" target="_blank">#LaTeX</a> because it usually meant a TON of digging through old documentation and piecing things together. Recently, i just started asking <a href="https://mastodon.social/tags/chatgpt" class="mention hashtag" rel="nofollow noopener" target="_blank">#chatgpt</a> things like:How do I flip through a directory of a bazillion zip files, uncompress each one, put the contents on my NAS, and then move those zip files somewhere else for safekeeping?and learn from the answer

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