Articles
Linux
Commands, permissions, processes, systemd and shell scripting.
No space left on device
Linux
No space left on device: find what is filling your Linux disk
Fix "No space left on device" on Linux: find the biggest directories and files, free space safely, and handle the cases where df says there is space.
Beginner · 4 min read
./deploy.sh: Permission denied
Linux
"Permission denied" when running a script: 5 causes and fixes
Fix "bash: ./script.sh: Permission denied" and "bad interpreter" on Linux: execute bits, noexec mounts, directory permissions, Windows line endings and shebangs.
Beginner · 4 min read
Permission denied (publickey)
Linux
SSH "Permission denied (publickey)": how to find the real cause
Fix SSH "Permission denied (publickey)": read the server log, fix ~/.ssh permissions, check the key and sshd_config, and handle SELinux on RHEL.
Intermediate · 3 min read