Category: Linux

Learn how to remove files and directory trees with Linux rm, use interactive safeguards, limit recursive deletion, and avoid destructive path mistakes.

Learn how to create hard links and symbolic links with Linux ln, choose relative or absolute targets, replace links safely, and inspect link behavior.

Learn how to use the Linux install command to copy files while setting modes, owners, groups, timestamps, and destination directories in deployment scripts.

Learn how Linux shred overwrites file data, which options control its passes and removal, and why SSDs, snapshots, backups, and modern filesystems limit its guarantees.

Learn how to create unpredictable temporary files and directories with Linux mktemp, use templates and TMPDIR, clean up with trap, and avoid unsafe dry runs.

Learn how to shrink or extend files with Linux truncate, adjust sizes relatively, match a reference file, and distinguish sparse logical size from disk usage.

Learn how to copy and convert files or block devices with Linux dd, choose block sizes and ranges, display progress, verify results, and avoid overwriting the wrong device.

Learn how to use the Linux readlink command to display symbolic link targets and optionally resolve canonical paths, with essential options, practical examples, output interpretation, and common troubleshooting tips.

Learn how to identify a Linux distribution and version with /etc/os-release, then check the running kernel and CPU architecture with hostnamectl and uname. The guide also covers scripts, legacy systems, containers, WSL, and chroot environments.