Tag: bash

Find your Linux distro version, kernel version, and architecture with uname, lsb_release, /etc/os-release, and hostnamectl.

Remove spaces and special characters from filenames using bash loops, rename, find, and parameter expansion tricks.

Fix 'Argument list too long' in bash when cp or rsync chokes on thousands of files, glob loops, find + xargs, and the ARG_MAX reason behind it.

Your disk is full and du is lying to you. ncdu, df, and find tricks to track down space hogs before your server goes down at 2 AM.

Master bash for loops, while loops, and seq for sequential counting, iterate over files, ranges, and arrays without losing your mind.

Extract tar.gz, tar.bz2, tar.xz, flags demystified, compression compared, directory extraction, and the gotchas that trip you up.

Rename files to remove spaces and special characters using bash, rename, tr, and parameter expansion patterns for bulk file cleanup.

logrotate keeps your /var/log from eating the disk, configure rotation schedules, compression, and retention for any service log.

Clean up empty directories with find and rmdir, safely prune orphaned dirs left after file migrations.

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.

sed is the stream editor for making text substitutions, deletions, and insertions in files, the patterns you'll use 90% of the time.