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Standard bash script format
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#!/bin/bash | |
CLEAR='\033[0m' | |
RED='\033[0;31m' | |
function usage() { | |
if [ -n "$1" ]; then | |
echo -e "${RED}👉 $1${CLEAR}\n"; | |
fi | |
echo "Usage: $0 [-n number-of-people] [-s section-id] [-c cache-file]" | |
echo " -n, --number-of-people The number of people" | |
echo " -s, --section-id A sections unique id" | |
echo " -q, --quiet Only print result" | |
echo "" | |
echo "Example: $0 --number-of-people 2 --section-id 1 --cache-file last-known-date.txt" | |
exit 1 | |
} | |
# parse params | |
while [[ "$#" > 0 ]]; do case $1 in | |
-n|--number-of-people) NUMBER_OF_PEOPLE="$2"; shift;shift;; | |
-s|--section-id) SECTION_ID="$2";shift;shift;; | |
-v|--verbose) VERBOSE=1;shift;; | |
*) usage "Unknown parameter passed: $1"; shift; shift;; | |
esac; done | |
# verify params | |
if [ -z "$NUMBER_OF_PEOPLE" ]; then usage "Number of people is not set"; fi; | |
if [ -z "$SECTION_ID" ]; then usage "Section id is not set."; fi; | |
# test things, short way | |
# | |
# test 1 -eq 2 && echo "yes" || echo "no" | |
# or | |
# test 1 -eq 1 && echo "yes" | |
# or | |
# [ 4 -eq 4 ] && [ "moo" = "moo" ] && echo "it is a cow" || echo "it is not a cow" | |
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