Troubleshooting Guide

Use this page when commands do not behave as expected during the workshop.

Command Not Found

Symptoms:

• Shell prints command not found

Checks and fixes:

which <command>
echo $PATH

If the command is from Conda, activate the expected environment:

conda activate unix_workshop

Permission Denied

Symptoms:

• Shell prints Permission denied when running a script

Checks and fixes:

ls -l my_script.sh
chmod +x my_script.sh

SSH Connection Issues

Symptoms:

• Hanging connection or authentication failure

Checks and fixes:

ssh -v yournetidhere@pronghorn.rc.unr.edu

If using keys, ensure your public key exists in ~/.ssh/authorized_keys on the server.

rsync Surprises

Symptoms:

• Wrong folder nesting or unexpected deletes

Checks and fixes:

• Re-check source trailing slash behavior
• Always test destructive sync with --dry-run

rsync -av --delete --dry-run /source/path/ user@host:/dest/path/

Disk Full Errors

Symptoms:

• No space left on device

Checks and fixes:

df -h
du -sh .

Delete unneeded temporary files and rerun.