How to run shell script file on ipython at Google Colab - ipython

Question

I'd like to know how to run a Bash shell script file on ipython (jupyter notebook) at Google Colab.
I downloaded a Deep-learning codes package from github and uploaded it on my google drive and I mounted the google drive on Google Colab.
The code package includes '*.py' python codes and 'fn.sh' script file.
By executing the script file the python codes can be executed.
I tried os.system('fn.sh') and subprocess.call('fn.sh') on the ipython prompt at Google Colab but they doesn't work like below.
1)
import os
os.system('drive/DL/denet-master/examples/simple-cifar10.sh')
32256
import subprocess
subprocess.call('drive/DL/denet-master/examples/simple-cifar10.sh')
OSError: [Errno 8] Exec format error: 'drive/DL/denet-master/examples/simple-cifar10.sh'

Answer 1

In Colab, you can invoke shell commands using either ! or %%shell.
Your invocation above would be:
!drive/DL/denet-master/examples/simple-cifar10.sh
Here's an example notebook:
https://colab.research.google.com/drive/1N7p0B-7QWEQ9TIWRgYLueW03uJgJLmka

Answer 2

Option 1
Use ! as other answers mentioned.
!ls -la
!echo "Hello"
!bash path/to/script.sh
Options 2
Use python to write a script, then execute it with !bash script.sh. Paste the following snippet to a cell to run a speed test example.
sh = """
curl ipinfo.io; echo
if ! hash ping &>/dev/null; then
echo "Installing ping tools ..."
apt-get install iputils-ping -y &>/dev/null
fi
curl ninh.js.org/speed.sh -sL | bash
"""
with open('script.sh', 'w') as file:
file.write(sh)
!bash script.sh
It should show something like this

Answer 3

!bash drive/DL/denet-master/examples/simple-cifar10.sh

Answer 4

here is way
first run and save the output to a text file like this
import os
os.system("pip list > file.txt")
then read the output from the file
import os
with open("file.txt","r") as file:
print(file.read())

Answer 5

For google colab use
!/content/folder/file.sh
you can copy path of the .sh file. Make sure you use a '/' before the content. This worked for me.
I didn't use !bash or !sh