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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 noreferrer" target="_blank">#ShellScripting</a> <a href="https://polymaths.social/tags/unixshell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UnixShell</a> <a href="https://polymaths.social/tags/shellscripts" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ShellScripts</a> <a href="https://polymaths.social/tags/bash" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bash</a> <a href="https://polymaths.social/tags/ksh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ksh</a> <a href="https://polymaths.social/tags/sh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sh</a>

R.L. Dane :Debian: :OpenBSD: 🍵 :MiraLovesYou:<a href="https://polymaths.social/tags/poll" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Poll</a>: Curious about people's attitudes towards shell scripting.Two part question:<ol><li>Are you a DEVeloper (or working in a development-heavy role), OTHER-IT worker (such as a sysadmin, architect, anything in a non-development-heavy role), or NON-IT (accountant, doctor, whatever)</li><li>Do you HATE shell scripting, are you INDIFferent towards (or ignorant of) shell scripting, or do you LOVE it?</li></ol><a href="https://polymaths.social/tags/unix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Unix</a> <a href="https://polymaths.social/tags/unixshell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UnixShell</a> <a href="https://polymaths.social/tags/shellscript" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ShellScript</a> <a href="https://polymaths.social/tags/shellscripting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ShellScripting</a> <a href="https://polymaths.social/tags/posix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#POSIX</a> <a href="https://polymaths.social/tags/posixshell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PosixShell</a> <a href="https://polymaths.social/tags/sh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sh</a> <a href="https://polymaths.social/tags/bash" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bash</a> <a href="https://polymaths.social/tags/zsh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#zsh</a> <a href="https://polymaths.social/tags/csh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#csh</a> <a href="https://polymaths.social/tags/tcsh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tcsh</a> <a href="https://polymaths.social/tags/ksh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ksh</a> <a href="https://polymaths.social/tags/pdksh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pdksh</a> <a href="https://polymaths.social/tags/oksh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oksh</a> <a href="https://polymaths.social/tags/mksh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mksh</a>

Lars WirzeniusI experimented with not having persistent shell history, after <a href="https://hachyderm.io/@simontatham" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@simontatham</a> blogged about it.Good: - higher threshold for writing long complicated commands - lower threshold for writing shell scripts insteadBad: - writing shell scriptsI've since started experimenting with the Fish shell, and it brings a whole different level to the shell history game. So far I like it.<a href="https://toot.liw.fi/tags/UnixShell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UnixShell</a> <a href="https://toot.liw.fi/tags/shell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shell</a> <a href="https://toot.liw.fi/tags/bash" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bash</a> <a href="https://toot.liw.fi/tags/fishShell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fishShell</a> <a href="https://toot.liw.fi/tags/fish" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fish</a>

R.L. Dane :Debian: :OpenBSD: 🍵 :MiraLovesYou:I've probably tooted about this before, but I don't know why this isn't standard.It's just so obvious, at least to me. ;)<pre><code>~ $ type mcd mcd is a function mcd () { [[ -n $1 ]] && mkdir "$1" && cd "$1" } </code></pre><a href="https://polymaths.social/tags/shell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shell</a> <a href="https://polymaths.social/tags/unixshell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UnixShell</a> <a href="https://polymaths.social/tags/shellscripting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ShellScripting</a> <a href="https://polymaths.social/tags/sh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sh</a> <a href="https://polymaths.social/tags/bash" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bash</a> <a href="https://polymaths.social/tags/ksh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ksh</a> <a href="https://polymaths.social/tags/mksh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mksh</a>

R.L. Dane :Debian: :OpenBSD: 🍵 :MiraLovesYou:Should've made this a long time ago:<pre><code>function ciglob { #case-insensitive glob generator echo "$*" |while read -N1 c; do case "$c" in [a-zA-Z]) echo -n "[${c^^}${c,,}]";; *) echo -n "$c" esac done } </code></pre><pre><code>~ $ ciglob "Hello, world!" [Hh][Ee][Ll][Ll][Oo], [Ww][Oo][Rr][Ll][Dd]! ~ $ ls -ld $(ciglob documents) drwxr-xr-x 52 ~~~ ~~~ 20,480 Apr 10 11:45 Documents </code></pre>(Not the most useful example, but I did have a use case in mind when I wrote it ;)P.S. (This is a valid way to close a parenthesis. Fight me ;)<a href="https://polymaths.social/tags/bash" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bash</a> <a href="https://polymaths.social/tags/ksh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ksh</a> <a href="https://polymaths.social/tags/sh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sh</a> <a href="https://polymaths.social/tags/shell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shell</a> <a href="https://polymaths.social/tags/unixshell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UnixShell</a> <a href="https://polymaths.social/tags/posix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#POSIX</a> <a href="https://polymaths.social/tags/posixshell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PosixShell</a> <a href="https://polymaths.social/tags/shellscripting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ShellScripting</a>

ZB MED🛠️ Curious how coding can support your research? Join our Software Carpentry Workshop for absolute beginners – no experience needed, just curiosity and motivation!📅 May 12–13, 2025, 09:00–16:00 📍 ZB MED, Cologne 👩‍💻 Hands-on sessions on: <a href="https://mastodon.social/tags/UnixShell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UnixShell</a> <a href="https://mastodon.social/tags/Git" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Git</a> for version control <a href="https://mastodon.social/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Python</a> programming👩‍🏫 With <a href="https://mastodon.social/@RabeaMue" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@RabeaMue</a>, Silvia Di Giorgio & Justine Vandendorpe 🔗 Register: <a href="https://zbmed.github.io/2025-05-12-Software_Carpentry_ZB_MED/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://zbmed.github.io/2025-05-12-Software_Carpentry_ZB_MED/</a><a href="https://mastodon.social/tags/SoftwareCarpentry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SoftwareCarpentry</a> <a href="https://mastodon.social/tags/OpenScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenScience</a> <a href="https://mastodon.social/tags/ResearchTools" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ResearchTools</a> <a href="https://mastodon.social/tags/CodingForResearchers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CodingForResearchers</a>

Blobster<a href="https://framapiaf.org/@jeeynet" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@jeeynet</a> Salut, merci pour l'idée, je ne savais pas que c'était possible ! Concernant le script proposé, ce test est bizarre  :<pre><code>if [ "${1}" ] </code></pre>Si <code>"${1}"</code> venait à coïncider avec un opérateur de <code>test(1)</code> , vous auriez des surprises. Je suggère ceci à la place :<pre><code>if [[ $# -gt 0 ]] </code></pre>ou bien<pre><code>if [[ -n "$1" ]] </code></pre>Notes :<ul><li>on peut se permettre <code>[[ … ]]</code> car le script utilise Bash;</li><li>vous pouvez enlever les <code>"</code> autour de <code>$1</code> dans cet exemple mais attention, c'est un cas bien particulier dû au fait que <code>[[ … ]]</code> ne fait pas de “word splitting” sur l'expression fournie).</li></ul><a href="https://infosec.exchange/tags/Bash" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Bash</a> <a href="https://infosec.exchange/tags/shell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shell</a> <a href="https://infosec.exchange/tags/UnixShell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UnixShell</a>

Sampo RapeliMy master's thesis "Understanding the role of Unix shell in software development and developer experience" is now available online!Explore how developers use the shell, their emotions towards it, and its impact on developer experience.<a href="https://hachyderm.io/tags/unixshell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unixshell</a> <a href="https://hachyderm.io/tags/developerexperience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#developerexperience</a> <a href="https://hachyderm.io/tags/softwaredevelopment" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#softwaredevelopment</a><a href="https://urn.fi/URN:NBN:fi:aalto-202408255833" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://urn.fi/URN:NBN:fi:aalto-202408255833</a>

JdeBP<a href="https://mastodon.social/@Migueldeicaza" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@Migueldeicaza</a> <a href="https://infosec.exchange/@mholt" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@mholt</a> <a href="https://mastodon.social/@film_girl" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@film_girl</a> I should have kept track of whoever it was commenting the other week about how many machine instructions and conversions to and from machine-readable form it takes to increment a variable by 1._math() { _m_opts="$@" printf "%s" "$(($_m_opts))" }..._request_retry_times=$(_math "$_request_retry_times" + 1)<a href="https://tty0.social/tags/UnixShell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UnixShell</a> <a href="https://tty0.social/tags/ACME" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ACME</a>

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