if [ "$content" = "hello" ]\ || [ "$content" = "kitty" ] then echo "content is hello or kitty" elif [ "$content" = "red" ]\ || [ "$content" = "yellow" ] then echo "content is red or yellow" fi
特别注意:"]"和"\"之间无空格
if [ "$content" = "hello" ]\ || [ "$content" = "kitty" ] then echo "content is hello or kitty" elif [ "$content" = "red" ]\ || [ "$content" = "yellow" ] then echo "content is red or yellow" fi
特别注意:"]"和"\"之间无空格
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从键盘分别输入年、月、日,判断这一天是当年的第几天
前言: 无论什么编程语言都离不开条件判断。SHELL也不例外。 if list then d
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