Linux chown -R Not Changing Permissions on Mounted Network Drives (NFS/SMB)
chown appearing to succeed but having no actual effect on a network-mounted drive almost always means the mount itself is configured in a way that either...
Category
Linux / Bash
Solutions for permission errors, script failures, and common command-line troubleshooting on Linux.
Linux "No Space Left on Device" Error Despite df -h Showing Free Disk Space (Inodes Full)
"No space left on device" while df -h clearly shows available disk space means you've run out of inodes, not actual storage blocks — Linux filesystems have a...
Linux Process Using 100% CPU, How to Trace High System Load With htop/perf
A process pinned at 100% CPU tells you something is consuming a full core continuously, but identifying htop's culprit process is only the first step — finding...
Bash Script Fails With "$'\r': Command Not Found" (CRLF Line Endings)
The $'\r': command not found error is a strong, specific signal of Windows-style line endings (CRLF) in a script meant to run on Linux/Unix, which expects...
Bash set -e Not Exiting Script Inside Function or Subshell
set -e is meant to make a script exit immediately when any command fails, but its actual behavior has several well-documented, specific exceptions where a...
Linux Process Killed Automatically by System (Out of Memory)
A process that just stops running with no crash log, no error message, and no obvious cause is often a strong sign of the Linux kernel's OOM (Out of Memory)...
Linux SSH Connection Hangs on "Authenticating" or Drops Frequently
An SSH connection that hangs specifically during authentication, or that drops unexpectedly after connecting successfully, usually traces back to one of a...
Linux systemd Service Status "Degraded" After Restart
A system-wide "degraded" state in systemd means at least one unit (a service, a mount, a timer) failed to start or exited with an error — it's a summary...
Bash Heredoc Syntax Errors, Common Mistakes
Bash heredoc syntax errors almost always come down to a small set of recurring mistakes — trailing whitespace after the closing delimiter, unexpected variable...