[profiles/base] change check_ip script

profiles/base/.local/bin/check_ip

@@ -1,6 +1,7 @@
-#!/usr/bin/env bash
+#!/bin/bash
 
-readonly SCRIPT_NAME=${0##*/}
+SCRIPT_NAME="${0##*/}"
+readonly SCRIPT_NAME
 
 check_deps() {
   command -v curl >/dev/null 2>&1 || die "curl: command not found"
@@ -22,34 +23,40 @@ EOF
 }
 
 shell_quote() {
-    local -r string=$1
-    printf "'%s'" "${string//'/'\\''}"
+  local -r string="$1"
+  printf "'%s'" "${string//'/'\\''/}"
 }
 
 die() {
-    local -r message=$1
+  local -r message="$1"
   printf "%s: %b\n" "${SCRIPT_NAME}" "${message}" >&2
   exit 1
 }
 
 invalid_option() {
-    local -r option=$1
-    die "invalid option $(shell_quote "${option}")\nTry '${SCRIPT_NAME} --help' for usage."
+  local -r option="$1"
+  die "invalid option $(shell_quote "${option}")
+Try '${SCRIPT_NAME} --help' for usage."
 }
 
 parse_args() {
   family="auto"
   while (($# > 0)); do
     case "$1" in
-            -h|--help) usage; exit 0 ;;
+    -h | --help)
+      usage
+      exit 0
+      ;;
     --family)
-                ( (( $# < 2 )) || [[ -z "$2" ]] ) && die "--family requires an argument (auto, 4 or 6)"
-                family=$2
+      ( (($# < 2)) || [[ -z "$2" ]]) &&
+        die "--family requires an argument (auto, 4 or 6)"
+      family="$2"
       shift 2
       ;;
     --family=*)
-                family=${1#*=}
-                [[ -z "${family}" ]] && die "--family requires an argument (auto, 4 or 6)"
+      family="${1#*=}"
+      [[ -z "${family}" ]] &&
+        die "--family requires an argument (auto, 4 or 6)"
       shift
       ;;
     *) invalid_option "$1" ;;
@@ -59,9 +66,9 @@ parse_args() {
 }
 
 validate_args() {
-    case ${family} in
+  case "${family}" in
   auto | 4 | 6) ;;
-        *) die "invalid value for family: '${family}' (expected auto, 4 or 6)"
+  *) die "invalid value for family: '${family}' (expected auto, 4 or 6)" ;;
   esac
 }