Disallow `rm` to remove `*`












1












$begingroup$


Note: If you googled this by the title of this question, don't use this script unless you know what it is supposed to do.



This is a script in bash 3+ that I have used for long for preventing rm * and rm -rf * from accidentally invoked and removing important files by mistake. I put it in my ~/.bash_aliases.



alias rm='set -f;rm'

rm(){

    if [[ "$-" == *i* ]]

    then

        if [ "$1" = "*" ] || [ "$2" = "*" ] || [ "$1" = "./*" ] || [ "$2" = "./*" ]

        then

            echo "Abort: refusing to remove *, please go to the parent folder and do rm <folder_name>/*" 1>&2

            set +f

            return 1

        fi

    fi  

    set +f

    /bin/rm -i $@

}



set +f


I would like to know whether there are any vulnerabilities and whether it can be improved.






bash







share|improve this question











$endgroup$

















    1












    $begingroup$


    Note: If you googled this by the title of this question, don't use this script unless you know what it is supposed to do.



    This is a script in bash 3+ that I have used for long for preventing rm * and rm -rf * from accidentally invoked and removing important files by mistake. I put it in my ~/.bash_aliases.



    alias rm='set -f;rm'
    
rm(){
    
    if [[ "$-" == *i* ]]
    
    then
    
        if [ "$1" = "*" ] || [ "$2" = "*" ] || [ "$1" = "./*" ] || [ "$2" = "./*" ]
    
        then
    
            echo "Abort: refusing to remove *, please go to the parent folder and do rm <folder_name>/*" 1>&2
    
            set +f
    
            return 1
    
        fi
    
    fi  
    
    set +f
    
    /bin/rm -i $@
    
}
    

    
set +f


    I would like to know whether there are any vulnerabilities and whether it can be improved.






    bash







    share|improve this question











    $endgroup$















      1












      1








      1





      $begingroup$


      Note: If you googled this by the title of this question, don't use this script unless you know what it is supposed to do.



      This is a script in bash 3+ that I have used for long for preventing rm * and rm -rf * from accidentally invoked and removing important files by mistake. I put it in my ~/.bash_aliases.



      alias rm='set -f;rm'
      
rm(){
      
    if [[ "$-" == *i* ]]
      
    then
      
        if [ "$1" = "*" ] || [ "$2" = "*" ] || [ "$1" = "./*" ] || [ "$2" = "./*" ]
      
        then
      
            echo "Abort: refusing to remove *, please go to the parent folder and do rm <folder_name>/*" 1>&2
      
            set +f
      
            return 1
      
        fi
      
    fi  
      
    set +f
      
    /bin/rm -i $@
      
}
      

      
set +f


      I would like to know whether there are any vulnerabilities and whether it can be improved.






      bash







      share|improve this question











      $endgroup$




      Note: If you googled this by the title of this question, don't use this script unless you know what it is supposed to do.



      This is a script in bash 3+ that I have used for long for preventing rm * and rm -rf * from accidentally invoked and removing important files by mistake. I put it in my ~/.bash_aliases.



      alias rm='set -f;rm'
      
rm(){
      
    if [[ "$-" == *i* ]]
      
    then
      
        if [ "$1" = "*" ] || [ "$2" = "*" ] || [ "$1" = "./*" ] || [ "$2" = "./*" ]
      
        then
      
            echo "Abort: refusing to remove *, please go to the parent folder and do rm <folder_name>/*" 1>&2
      
            set +f
      
            return 1
      
        fi
      
    fi  
      
    set +f
      
    /bin/rm -i $@
      
}
      

      
set +f


      I would like to know whether there are any vulnerabilities and whether it can be improved.






      bash




      bash






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 2 mins ago







      Weijun Zhou

















      asked 25 mins ago









      Weijun ZhouWeijun Zhou

      1335




      1335






















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