Linux Command Line (05) touch and mkdir
Iwantittocheckifitisalreadyinstalled,ifyes,thendonothingandclosedthebatchfile.Ifno,thencontinuewiththeinstallation/copyingfiles.,Youdon'tneedtocheckifthedirectoryexists,justMaketheDirectory,ifitalreadyexists,you'llgetanerrormessagewhichyoucansimp...。參考影片的文章的如下: