旅行者3468号

摘要： #! /bin/bash echo -n Input year to judge if it is a leap year: read year let "y1=$year % 4" let "y2=$year % 100" let "y3=$year % 400" if [ ! "$y1" -eq 0 ] then leap=0 elif [ ! "$y2" -eq 0 ] then leap... 阅读全文

摘要： #! /bin/bash echo -n input float: read num echo power of the operation: echo $num^2 |bc echo converted to binary echo "obase=2;$num" |bc [root@lenny Desktop]# ./zhuanhuan.sh input float:3.1415... 阅读全文

摘要： #! /bin/bash echo use function hello() { echo how many parameters in the function:$#; echo the name of this function is $0; echo the first parameters is :$1; echo the second parameters is :$2; } hel... 阅读全文

摘要： #! /bin/bash echo if num smaller than 5,it will continue num=0 while [ $num -lt 5 ] do echo now the num is $num let num++ done [root@lenny Desktop]# ./while.sh if num smaller than 5,it will c... 阅读全文

摘要： #! /bin/bash echo what programming lanuages do you know? for i in python C# java ruby perl do echo i know : $i done [root@lenny Desktop]# ./for.sh what programming lanuages do you know? i kno... 阅读全文