Tag: sysadmin

Empty directories pile up after file migrations. Prune them with find and rmdir, dry-run first, use find -delete, and handle hidden dirs without surprises.

Count files in a directory (recursively or not) with find, ls, and tree, quick one-liners for when du just isn't telling you enough.

tar, gzip, bzip2, xz, zip, demystified. When to use each compression tool, speed vs ratio trade-offs, and the flags you'll actually need.