Genesis2000脚本编写常用命令解析.doc

Genesis2000脚本编写常用命令解析 1. switch 的用法，注意每一个 case 必须要以 breaksw 结尾　 否则会继续执行下一个 case 的命令???? (1) 另外， $ 的意思是取得使用者的 stand input???? (2) echo 若加上 -n 的选项，则游标会停留在该行最后 echo -n Input one color:??? set STOPLIGHT = $switch ($STOPLIGHT)??? case red:???????? echo red???????? breaksw??? case orange:???????? echo orange???????? breaksw??? case green:???????? echo green???????? breaksw??? default:???????? echo you input $STOPLIGHTendsw--------------------------------------------------------------------2. 利用 set 来取得变数， set ABC = I am ABC???? 也可以利用 `command` 来取得命令???? 且外，case 也可以用万用字元 * 来代替set VER = `uname -r`switch ($VER)??? case 5.5:???????? echo run the setup of $VER???????? breaksw??? case 5.3:???????? echo run the setup of $VER???????? breaksw??? case 5.*:???????? echo like 5.x???????? breaksw??? case 4.*:???????? echo like 4.x???????? breaksw??? default:???????? echo no ideaendsw--------------------------------------------------------------------3. if 的语法，比较数字set n1 = 1set n2 = 2if ($n1 == $n2) then??? echo $n1 Equal $n2else??? echo $n1 Not Equal $n2endif--------------------------------------------------------------------4. if 的语法，比较字串set n1 = abcdefset n2 = abcdeif ($n1 == $n2) then??? echo $n1 Equal $n2else??? echo $n1 Not Equal $n2endif--------------------------------------------------------------------5. if 的语法，比较相似的字串set n1 = abcdefset n2 = abcdeif ($n1 =~ $n2) then??? echo $n1 Like $n2else??? echo $n1 Not Like $n2endif--------------------------------------------------------------------6. if 的语法，比较数字的大小set n1 = 1set n2 = 2if ($n1 $n2) then??? echo $n1 $n2else??? echo $n1 $n2endif--------------------------------------------------------------------7. 每分钟执行一次的程式#??? mm 等于当天时间的【分钟】数set mm = `date | cut -d -f4 | cut -d: -f2`if ( -r $0.out ) then??? rm $0.out??? touch $0.outelse??? touch $0.outendifwhile ( $mm = 16 )??? set mm = `date | cut -d -f4 | cut -d: -f2`??? echo