void CpCommand:: execute(FileSystem & fs) {
    if ((verbose == 2) | (verbose == 3)) {
        cout << this->toString() + ' ' + this->getArgs() << endl;
    }

    string myArg = getArgs();
    string source = myArg.substr(0,myArg.find_first_of(' '));
    string destination = myArg.substr(myArg.find_first_of(' ')+1);

    if (source =="/")
        return;

    string currentName="";
    Directory& toReturn = fs.getWorkingDirectory();
    Directory* currDir=&fs.getWorkingDirectory();
    if(source[0]=='/') {
        *currDir = fs.getRootDirectory();
        source=source.substr(1);
    }

    while(source.size()!=0){
        if((source[0]!='.')&(source[0]!='/')){
            currentName+=source[0];
            source=source.substr(1);
        }
        if((source.size()==1)&&(source[0]=='/')&(currentName.size()>0)){
            source="";
        }

        if((source.size()>1)&&(source[0]=='/')&(currentName.size()>0)){
            bool found(false);
            for(size_t i(0);(i<currDir->getChildren().size())&(!found);i++){
                if(currDir->getChildren()[i]->getName()==currentName){
                    currDir= dynamic_cast<Directory*>(currDir->getChildren()[i]);
                    currentName="";
                    source=source.substr(1);
                    found=true;
                }
            }
            if(!found){
                cout<<"No such file or directory"<<endl;
                return;
            }
        }
        if((source.size()>2)&& (source[0]=='.')&(source[1]=='.')&(source[2]=='/')){
            if((currDir)==(&fs.getRootDirectory())){
                return;
            }
            else{
                currDir=(currDir->getParent());
                source=source.substr(3);
            }
        }
        if((source.size()>=2)&& (source[0]=='.')&(source[1]=='.')){
            if((currDir)==(&fs.getRootDirectory())){
                return;
            }
            else{
                currDir=(currDir->getParent());
                source=source.substr(2);
            }
        }

    }
    bool found(false);
    for(size_t i(0);(i<currDir->getChildren().size())&(!found);i++){
        if(currDir->getChildren()[i]->getName()==currentName){
            found=true;
            if(currDir->getChildren()[i]->isFile()){
                CdCommand cd(destination);
                if(cd.executeBool(fs)){
                    bool found=false;
                    for (size_t i(0);i<fs.getWorkingDirectory().getChildren().size();i++)
                    {
                        if(fs.getWorkingDirectory().getChildren()[i]->getName()==currDir->getChildren()[i]->getName())
                            found=true;
                    }
                    if(!found)
                    fs.getWorkingDirectory().addFile(new File(currentName,currDir->getChildren()[i]->getSize()));
                }
                else{
                    cout<<"No such file or directory"<<endl;
                    return;
                }
            }
            else{//its a directory

                CdCommand cd(destination);
                if(cd.executeBool(fs)){
                    bool found=false;
                    for (size_t i(0);i<fs.getWorkingDirectory().getChildren().size();i++)
                    {
                        if(fs.getWorkingDirectory().getChildren()[i]->getName()==currDir->getChildren()[i]->getName())
                            found=true;
                    }
                    if(!found)
                    fs.getWorkingDirectory().addFile(new Directory(dynamic_cast<Directory&>(*currDir->getChildren()[i])));
                }
                else{
                    cout<<"No such file or directory"<<endl;
                    return;
                }
            }
        }
    }

    fs.setWorkingDirectory(&toReturn);

}