Check parameters |Linux->Bash

[jestem pro]

Hello, I don't know where to put it in.

I have to write a code to my studies, and yes I have read a tutorial about it.

But I don't exactly know how to write this xddd

That sounds my task:
Create a script in bash called "create_catalog" having a directory name as the parameter. If we don't write any parameter, will send "there is no a parameter" otherwise "the catalog exists". And if there is no the catalog it should create one.

This is all. If someone can help me pls. Just how to check if the parameter is "string" or something.

Thanks guys.

 

[Mister Budex]

its homework xd?

 

[jestem pro]

The end of the term is approaching and I have to do that. If you study you know how it looks like.
Okay it will be something like this:

#!/bin/bash
if [ $# -eq 0 ]
then
echo "gimme a parameter"
     elif [ -e ~/Desktop/$1 ]
       then
      echo "the catalog exists"
          else
       echo "the catalog has just created"
      `mkdir $1`
fi

Okay it's so fucking easy xdd.
But can anyone tell me how to modify this "`mkdir $1` cause it creates the catalog in a place where I actually am. Or is there any other way create files/catalogs etc>?

 

[Bogart]

`mkdir ~/Desktop/$1`

 

[jestem pro]

oh thanks man