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Expand
titleSolution 1

pshell

login

sean

????

delegate

exit

pshell whoami


Exercise - script a task to download a file in your directory.

Expand
titleSolution 2

Create a plain text file script1.txt containing:

Code Block
cd Demo/sean
get testfile1


pshell -i script1.txt


Exercise - script a task that attempts to perform something illegal that will fail (eg create remove a directory called /myfolderthat doesn't exist) and correctly report that report that the script encountered an error.


Expand
titleSolution 3


Run the following script if you have bash ... sorry Windows users (without WSL.)


Code Block
#!/bin/bash

pshell "mkdirrmdir /myfolderidontexist"

if [ $? == 0 ]; then
   echo "All good - proceed further!"
else
   echo "Operation failed!"
fi


This would typically be a job script on (eg) Pawsey HPC - where you would be doing all such work in a Linux environment.

The idea is that if something in your data setup pipeline fails - don't waste any valuable cpu time on it.