Shell script exercises Basic Article 2

Practice  2, write a script/root/bin/yesorno.sh, prompt the user to enter Yes or no, and determine whether the user entered Yes or no, or other information   #!/bin/bash #   case $1 in   yy]| [YY] [EE] [Ss])          echo  "You  put a $1"            ;;            [nn]| [NN] [Oo])   echo  "You put a $1"  ;;     *)       echo  "Ukown"  ;;     ESAC   ESCA3, write a script/root/bin/filetype.sh, determine the user input file path, display its file type (normal, directory, link, Other file types)     #!/bin/bash    #    read -p  " Please input a file " FILE    if [ -h  $FILE  ]  ; then          echo  "filetype is  symolink  file "    elif [ -d  $FILE  ] ;then    echo   "Filetype is directory"     elif [ -f  $FILE  ] ; then          echo  "Common file."     else         echo  "Filetype is  other "    fi4, write a script/root/bin/checkint.sh, determine whether the user input parameter is a positive integer     #!/ bin/bash    #    if [[ $1 =~ ^0*[1-9][0-9]*$  ]] ;then    echo  "You have input a zhengshu"      else         echo  "Wrong"      fi

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Shell script exercises Basic Article 2