Bash foreach 스타일

1 개요

Bash foreach 스타일

ARR=(bash c python)
for VALUE in "${ARR[@]}"; do
	echo "[$VALUE]"
done

ARR=("John Smith" "Jane Doe" "Mike Barnes" "Kevin Patterson")
for VALUE in "${ARR[@]}"; do
	echo "[$VALUE]"
done
# [Jonh Smith]
# [Jane Doe]
# [Mike Barnes]
# [Kevin Patterson]

ARR=("John Smith" "Jane Doe" "Mike Barnes" "Kevin Patterson")
for i in "${!ARR[@]}"; do
	echo $i: ${ARR[$i]}
done
# 0: John Smith
# 1: Jane Doe
# 2: Mike Barnes
# 3: Kevin Patterson

ARR=("John Smith" "Jane Doe" "Mike Barnes" "Kevin Patterson")
for i in "${!ARR[@]}"; do
	echo $((i+1)): ${ARR[$i]}
done
# 1: John Smith
# 2: Jane Doe
# 3: Mike Barnes
# 4: Kevin Patterson

ARR=("John Smith" "Jane Doe" "Mike Barnes" "Kevin Patterson")
for i in "${!ARR[@]}"; do
	echo [$((i+1))/${#ARR[@]}] ${ARR[$i]}
done
# [1/4] John Smith
# [2/4] Jane Doe
# [3/4] Mike Barnes
# [4/4] Kevin Patterson

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