initial commit

.gitignore

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+*~
+.DS_Store
+*.pkg.tar.zst
+*.pkg.tar.zst.sig

PKGBUILD

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+# Maintainer: Sebastian Hugentobler <shu@vanwa.ch>
+
+pkgname=genpw
+pkgver=0.1.0
+pkgrel=1
+pkgdesc="Generate random passwords of a specified length."
+arch=("any")
+url="https://code.vanwa.ch"
+license=('MIT')
+depends=("coreutils")
+source=(
+  "genpw"
+)
+sha256sums=("a45fcc797851b494de1a3f21e10435a754d955e340a8f3a686b7f83fca85ec9a")
+
+package() {
+  cd "$srcdir/"
+
+  install -Dm 755 genpw "$pkgdir/usr/bin/genpw"
+}

genpw

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+#!/usr/bin/env sh
+set -o errexit
+set -o nounset
+
+pw_length=24
+
+display_help() {
+  echo "Usage: $0 [option...] " >&2
+  echo
+  echo "   -l,   password length [default: $pw_length]"
+  echo "   -h,   display this help and exit"
+  echo
+}
+
+parse_args() {
+  while getopts ":hl:" opt; do
+    case $opt in
+    h)
+      display_help
+      exit 0
+      ;;
+    l)
+      pw_length=$OPTARG
+      ;;
+    \?)
+      echo "Invalid option: -$OPTARG" >&2
+      display_help
+      exit 1
+      ;;
+    :)
+      echo "Option -$OPTARG requires an argument." >&2
+      display_help
+      exit 1
+      ;;
+    esac
+  done
+}
+
+parse_args "$@"
+tr -dc A-Za-z0-9 </dev/urandom | head -c "$pw_length"
+echo ''