配列に文字列が存在するかどうかを判定するシェルサンプル実装

#! /bin/sh
##Array
array=(
address
base
cart
company
store
)

 
# $1 if exists, output $1 exists, $1 if not, output $1 not exists
if [ "$1" ! = null ];then
 if [[ "${array[@]}" =~ "${1}" ]]; then
 echo "$1 exists"
 elif [[ ! "${array[@]}" =~ "${1}" ]]; then
 echo "$1 not exists"
 fi
else
 echo "Please pass an argument"
fi

## Determine if a string exists in the text
#! /bin/sh

names="This is a computer , I am playing games in the computer"
if [[ "${names[@]}" =~ "playing" ]]; then
 echo 'String exists'
fi

#! /bin/bash
a="hello,world,nice,to,meet,you"
# To split $a, store the old separator first
OLD_IFS="$IFS"

#set the separator
IFS="," 

#The following will automatically separate
arr=($a)

#Restore the original separator
IFS="$OLD_IFS"

#Iterate through the array
for s in ${arr[@]}
do
echo "$s"
done