Bash Checks

echo Conda Check
# test for a kernel installation
test="jupyter" # keyword
check=`conda list | grep $test` # run command
n=${#check} # determine length

if [[ ${n} > 0 ]];  # testt length
then # greater than zero
    echo "$check"
else # less than zero
    echo "$test not found"
fi

Conda Check
jupyter                   1.0.0            py39h06a4308_7  
jupyter_client            6.1.12             pyhd3eb1b0_0  
jupyter_console           6.4.0              pyhd3eb1b0_0  
jupyter_core              4.9.2            py39h06a4308_0  
jupyter_server            1.13.5             pyhd3eb1b0_0  
jupyterlab                3.3.2              pyhd3eb1b0_0  
jupyterlab_pygments       0.1.2                      py_0  
jupyterlab_server         2.10.3             pyhd3eb1b0_1  
jupyterlab_widgets        1.0.0              pyhd3eb1b0_1  

jupyter --version
jupyter kernelspec list

Selected Jupyter core packages...
IPython          : 8.4.0
ipykernel        : 6.15.1
ipywidgets       : not installed
jupyter_client   : 7.3.4
jupyter_core     : 4.11.1
jupyter_server   : not installed
jupyterlab       : not installed
nbclient         : not installed
nbconvert        : not installed
nbformat         : not installed
notebook         : not installed
qtconsole        : not installed
traitlets        : 5.3.0
Available kernels:
  bash          /home/dashpen/.local/share/jupyter/kernels/bash
  javascript    /home/dashpen/.local/share/jupyter/kernels/javascript
  python3       /home/dashpen/.local/share/jupyter/kernels/python3

test="python3" # keyword
check=`jupyter kernelspec list | grep $test` # run command
n=${#check} # determine length

if [[ ${n} > 0 ]];  # testt length
then # greater than zero
    echo "$check"
else # less than zero
    echo "$test not found"
fi

  python3       /home/dashpen/.local/share/jupyter/kernels/python3