在Shell腳本中,可以使用以下方法來判斷變量是否包含某個字符串:
if
語句和[[ ... ]]
條件判斷結(jié)構(gòu):if [[ $variable == *substring* ]]; then
echo "Variable contains substring"
else
echo "Variable does not contain substring"
fi
if
語句和case
結(jié)構(gòu):case $variable in
*substring*)
echo "Variable contains substring"
;;
*)
echo "Variable does not contain substring"
;;
esac
if
語句和字符串匹配操作符=
:if [ "${variable}" = *substring* ]; then
echo "Variable contains substring"
else
echo "Variable does not contain substring"
fi
請根據(jù)你的具體需求選擇其中一種方法來判斷變量是否包含某個字符串,將variable
替換為你想要判斷的變量名,substring
替換為你想要匹配的字符串。