Translate bash command to xonsh

Florian Schneider

5/28/23, 11:02 PM

I have a .sh script i used which is no longer working. It checks if a Docker container exists by:

if [ -z "$(docker ps -q -a -f name=mujoco_roboy)" ]

This does not work in xonsh.

(docker ps -q -a -f name=mujoco_roboy) delivers some console output. How can i continue from that?

https://xon.sh/bash_to_xsh.html

0 + 0

bash

xonsh

Artur Meinild

5/30/23, 7:01 PM

Whoever voted to close, please retract your votes. This is a perfectly valid question about another Linux shell (Xonsh).

Score:0

Ubuntu

Artur Meinild

5/30/23, 7:08 PM

Xonsh uses a Python (not Bash) syntax, so an if statement is constructed in another way (unfortunately I'm not a Python expert).

But the basic structure is like this:

a = 200
b = 33
if b > a:
    print("b is greater than a")
elif a == b:
    print("a and b are equal")
else:
    print("a is greater than b")

Remember, in Python, the indentation is important and part of the language, instead of closing words in Bash (fi).

I found this Python reference, which hopefully can help.

0 + 0

Florian Schneider

5/30/23, 7:38 PM

Thanks for the reply :) I code in python, this is also why I wanted to get xonsh in the first place But i do not know how to execute this in python. (docker ps -q -a -f name=mujoco_roboy) is a console command that asks docker for an output. I'd someho have to catch that and evaluate it.

Artur Meinild

5/30/23, 7:56 PM

Hmm I see. So actually this is about evaluating an expression, and not the if statement itself..

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Translate bash command to xonsh

TH: แปลคำสั่ง bash เป็น xonsh

RO: Traduceți comanda bash în xonsh

RU: Перевести команду bash в xonsh

VI: Dịch lệnh bash sang xonsh

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