shell script for aliasing long path names

aliasfolders.sh

##################################
#        folder shortcuts        #
##################################

#    - Use with "save >NICKNAME<"    #

if [ ! -f ~/.dirs ]; then  # if doesn't exist, create it
   touch ~/.dirs
fi

alias show='cat ~/.dirs'
save (){
     command sed "/!$/d" ~/.dirs > ~/.dirs1; \mv ~/.dirs1 ~/.dirs; echo "$@"=\"`pwd`\" >> ~/.dirs; source ~/.dirs ; 
}
source ~/.dirs  # Initialization for the above 'save' facility: source the .sdirs file
shopt -s cdable_vars # set the bash option so that no '$' is required when using the above facility