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--- informatique:linux:bash [2021/07/30 13:37] – relecture partielle pteu
+++ informatique:linux:bash [2022/01/02 17:38] – [Liens/Ressources] pteu
@@ Line 360: / Line 360: @@
 </code>
+====Désactiver l'alias====
+Pour afficher si une commande est un alias, on peut faire : ''alias <cmd>'', par exemple :
+<code bash>
+alias ls
+ alias ls='ls --color=auto'
+</code>
+Et si on souhaite la lancer sans l'alias (''ls'' tout court), on peut utiliser la syntaxe '''<cmd><nowiki>'</nowiki>'' ou ''\<cmd>'' :
+<code bash>
+'ls'
+# ou
+\ls
+</code>
 =====Liens/Ressources=====
   * [[https://github.com/jlevy/the-art-of-command-line|The Art of Command Line]] (jlevy's GitHub)
+  * [[https://betterdev.blog/minimal-safe-bash-script-template/|Minimal safe Bash script template]] (betterdev.blog)
+Je pose ledit template ici, mais le lien ci-dessous vaut le détour car il explique chaque best-practice en détail !
+<code bash>
+#!/usr/bin/env bash
+set -Eeuo pipefail
+trap cleanup SIGINT SIGTERM ERR EXIT
+script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)
+usage() {
+  cat << EOF # remove the space between << and EOF, this is due to web plugin issue
+Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]
+Script description here.
+Available options:
+-h, --help      Print this help and exit
+-v, --verbose   Print script debug info
+-f, --flag      Some flag description
+-p, --param     Some param description
+EOF
+  exit
+}
+cleanup() {
+  trap - SIGINT SIGTERM ERR EXIT
+  # script cleanup here
+}
+setup_colors() {
+  if [[ -t 2 ]] && [[ -z "${NO_COLOR-}" ]] && [[ "${TERM-}" != "dumb" ]]; then
+    NOFORMAT='\033[0m' RED='\033[0;31m' GREEN='\033[0;32m' ORANGE='\033[0;33m' BLUE='\033[0;34m' PURPLE='\033[0;35m' CYAN='\033[0;36m' YELLOW='\033[1;33m'
+  else
+    NOFORMAT='' RED='' GREEN='' ORANGE='' BLUE='' PURPLE='' CYAN='' YELLOW=''
+  fi
+}
+msg() {
+  echo >&2 -e "${1-}"
+}
+die() {
+  local msg=$1
+  local code=${2-1} # default exit status 1
+  msg "$msg"
+  exit "$code"
+}
+parse_params() {
+  # default values of variables set from params
+  flag=0
+  param=''
+  while :; do
+    case "${1-}" in
+    -h | --help) usage ;;
+    -v | --verbose) set -x ;;
+    --no-color) NO_COLOR=1 ;;
+    -f | --flag) flag=1 ;; # example flag
+    -p | --param) # example named parameter
+      param="${2-}"
+      shift
+      ;;
+    -?*) die "Unknown option: $1" ;;
+    *) break ;;
+    esac
+    shift
+  done
+  args=("$@")
+  # check required params and arguments
+  [[ -z "${param-}" ]] && die "Missing required parameter: param"
+  [[ ${#args[@]} -eq 0 ]] && die "Missing script arguments"
+  return 0
+}
+parse_params "$@"
+setup_colors
+# script logic here
+msg "${RED}Read parameters:${NOFORMAT}"
+msg "- flag: ${flag}"
+msg "- param: ${param}"
+msg "- arguments: ${args[*]-}"
+</code>