shell判断字符串包含关系
我们经常遇到shell中需要判断字符串包含关系的场景
下面整理了常用的几种判断方法，代码范例如下：
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| #!/bin/bash
STR_CONTAINER="ABCDEFGabcdefg"
STR_TEST="Gabcd"
echo "STR_CONTAINER = ${STR_CONTAINER}"
echo "STR_TEST = ${STR_TEST}"
echo "STR_CONTAINER 是否包含 STR_TEST？"
# grep查找法
function test_based_grep()
{
echo -e " test_based_grep: \c"
result=$(echo $STR_CONTAINER | grep "${STR_TEST}")
if [[ "$result" != "" ]]; then
echo "包含"
else
echo "不包含!"
fi
}
# 字符串运算符
function test_based_string_operator()
{
echo -e " test_based_string_operator: \c"
if [[ $STR_CONTAINER =~ $STR_TEST ]]; then
echo "包含"
else
echo "不包含!"
fi
}
# 利用通配符
function test_based_wildcards()
{
echo -e " test_based_wildcards: \c"
if [[ $STR_CONTAINER == *$STR_TEST* ]]; then
echo "包含"
else
echo "不包含!"
fi
}
test_based_grep
test_based_string_operator
test_based_wildcards
|
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|
STR_CONTAINER = ABCDEFGabcdefg
STR_TEST = Gabcd
STR_CONTAINER 是否包含 STR_TEST？
test_based_grep: 包含
test_based_string_operator: 包含
test_based_wildcards: 包含
|
