shelllings

a practical way to learn shell
git clone https://git.davidvoz.net/shelllings.git
index
logs
tree
license

09_direction.sh
1#!/bin/sh
2
3set -eu
4RED="\033[31m"
5GREEN="\033[32m"
6RESET="\033[0m"
7
8cleanup(){
9 [ -f "09_file" ] && rm 09_file
10}
11trap cleanup EXIT
12
13failed() {
14 printf "${RED}Failed${RESET}\n"
15 exit 1
16}
17
18sh exercises/09_direction.sh
19output=$(wc -l < 09_file)
20answer=$(cat LICENSE exercises/* | wc -l)
21
22[ $output -eq $answer ] || failed
23
24printf "${GREEN}Passed${RESET}\n"