CODEWITHSUNDEEP
bash
aless80
aless80

Reputation: 3332

Bash: compose url with variables and send it to browser

I want to write a command opening a a Jupyter Notebook in firefox but I am struggling with bash.

# This is what I want to achieve:
$ firefox --new-tab localhost:8888/tree/notebooks/my_notebook.ipynb

So far I can echo the url to the notebook:

$ cd notebooks
$ var="my_notebook.ipynb"
$ echo localhost:8888/tree/${PWD}/${var} | sed 's/\/home\/johndoe\///g'
localhost:8888/tree/Dropbox/notebooks/my_notebook.ipynb

How to pass the string above to a firefox command? I tried to use command substitution $(), piping |, quotes, but without success.

I am assuming that jupyter-notebook is running from my home directory /home/johndoe. Bonus points if you can pass $HOME to that sed command

SOLUTION: I created a function (not an alias) that opens Jupyter Notebook in firefox on a file or a directory as follows:

nb() { 
firefox --new-tab "$(echo localhost:8888/tree/$(realpath --relative-to="$HOME" "${PWD}")/$1)" & 
}

Upvotes: 0

Views: 439

Answers (1)

KamilCuk
KamilCuk

Reputation: 140990

I tried to use command substitution $(), piping |, quotes, but without success.

Really? It's just:

firefox --new-tab "$(echo localhost:8888/tree/${PWD}/${var} | sed 's/\/home\/johndoe\///g')"

Bonus points if you can pass $HOME to that sed command

Use a different separator - with ~ you should be safe enough. And learn about quoting in shell.

sed "s~$HOME~~g"

You can get relative path with:

realpath --relative-to="$HOME" "$PWD"

Any idea how to place it in an alias using $1 instead of $var?

Use a function

some_function() {
    if (($# == 0)); then
        echo "Missing argument"
        return 1
    fi
    firefox --new-tab "localhost:8888/tree/$(realpath --relative-to="$HOME")/$1"
}

Upvotes: 2

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