Bash: Homestead: Command Not Found

I install homestead and laravel but when i write the command in command line there is error the command not found for both laravel and homestead so i search a lot and i found that i must add the path so i added in efferent way but still the same error command not found. and this is my bash profile is there any wrong when i added the path?

# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/.local/bin:$HOME/bin

export PATH
export composer=php /usr/bin/composer.phar
export PATH=~/.composer/vendor/bin/:$PATH:/home/alsachit/.composer

You should run Laravel commands from Laravel project directory, like php artisan or composer. If you will run there commands from other directories, you can meet a lot of errors (a lot of guys ask for help on SO because of it), so my advice is to keep it simple.

UPDATE:

COMPOSER_PATH=~/.composer/vendor/bin
PATH=$COMPOSER_PATH:$PATH
export PATH

Another way which may work for you:

export PATH="$PATH:$HOME/.composer/vendor/bin"