shell 判断字符串是否包含另一个字符串

1.使用grep

s1="abcdefg"

s2="bcd"

result=$(echo $s1 | grep "${s2}")

if [[ "$result" != "" ]]

then

    echo "$s1 include $s2"

else

    echo "$1 not include $s2"

fi

2. 使用操作符~

fileName=/home/sss/data/hk

if [[ $fileName =~hk ]]

then

    echo "$fileName include hk"

else

    echo "not include"

fi

3. 使用通配符*

A="helloworld"

B="low"

if [[ $A == *$B* ]]

then

    echo "包含"

else

    echo "不包含"

fi