Snippets

• Shell aliases A list of aliases I use every day Shell Aug 2026
• EPITA PIE setup One-liner to install my EPITA dev environment on any PIE machine Dotfiles Aug 2026

  curl -fsSL https://raw.githubusercontent.com/KazeTachinuu/epita-ing1-setup/master/setup.sh | sh

• Dotfiles install script One-file installer for my dotfiles Dotfiles Aug 2026

  sh -c "$(curl -fsSL https://raw.githubusercontent.com/KazeTachinuu/dotfiles/master/install.sh)"

• .vimrc My Vim configs: exam machines, EPITA PIE, and my own machines Vim Aug 2026

  curl -fsSL https://raw.githubusercontent.com/KazeTachinuu/epita-ing1-setup/master/setup.sh | sh

• .zshrc My Zsh config Shell Aug 2026

  sh -c "$(curl -fsSL https://raw.githubusercontent.com/KazeTachinuu/dotfiles/master/install.sh)"

• curl | sh truncation guard Wrap installers in main() so a truncated download runs nothing Shell Aug 2026

  main() {
      ...entire script...
  }
  main "$@"

• Honest progress Step counters for fast work, native tool progress for slow work Shell Aug 2026

  TOTAL=3 N=0    # keep TOTAL equal to the number of steps
  step() { N=$((N + 1)); ok "[$N/$TOTAL] $1"; }
  
  # single-line ticker for loops over many items; cleans up after itself
  tick()    { [ -t 1 ] && printf "\r    %2d/%d %s\033[K" "$1" "$2" "$3" || true; }
  tickend() { [ -t 1 ] && printf '\r\033[K' || true; }
  
  # curl: progress bar on a TTY, silent when piped (stderr carries the bar)
  ...

• Idempotent symlink Symlink helper that reruns cleanly, backs up once, never dangles Shell Aug 2026

  link() {
      src="$1" dst="$2"
      [ -e "$src" ] || { warn "$src missing, skipped"; return 0; }
      [ "$(readlink "$dst" 2>/dev/null)" = "$src" ] && { skip "$dst"; return 0; }
      if [ -e "$dst" ] && [ ! -L "$dst" ]; then
          mv "$dst" "$dst.backup"
          warn "kept old file as $dst.backup"
      fi
  ...

• Marker output Status markers for shell scripts, colors auto-off when piped Shell Aug 2026

  # [*] info  [+] did  [=] already converged  [-] warn, kept going  [x] fatal
  if [ -t 1 ] && [ -z "${NO_COLOR:-}" ] && [ "${TERM:-}" != dumb ]; then
      B='\033[1;34m' G='\033[1;32m' Y='\033[1;33m'
      R='\033[31m' D='\033[2m' N='\033[0m'
  else
      B= G= Y= R= D= N=
  fi
  hdr()  { printf "${B}[*]${N} %s\n" "$1"; }
  ...

• Pinned fetch Checksummed installer downloads: pinned ref, sha256, atomic Shell Aug 2026

  CURL="curl -fsSL --proto =https --tlsv1.2 --retry 3"
  verified() { printf '%s  %s\n' "$2" "$1" | sha256sum -c - >/dev/null 2>&1; }
  trap 'rm -f .new.*' EXIT
  
  # fetch_pinned <name> <url-at-pinned-ref> <sha256> <dest>
  fetch_pinned() {
      [ -e "$4" ] && { skip "$1: already installed"; return 0; }
      if $CURL -o ".new.$1" "$2" && verified ".new.$1" "$3"; then
  ...

• Self-cleaning temp dir mktemp plus one trap: unpredictable name, guaranteed cleanup Shell Aug 2026

  tmp=$(mktemp -d) && trap 'rm -rf "$tmp"' EXIT
  trap 'exit 130' INT TERM    # dash/ash skip EXIT on signals without this

• Self-locking script One line at the top makes concurrent runs impossible Shell Aug 2026

  [ "${FLOCKER-}" != "$0" ] && exec env FLOCKER="$0" flock -en "$0" "$0" "$@" || :

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