Linux+ (XK0-005 - 2024) Command Line Labs Pt.1 | Linux+ Training

簡介：

This video is part of the Linux+ Command Line Labs series and serves as an introduction to essential command‑line operations for the Linux+ certification. Beginning at 00:24, the presenter briefly presents the topic and explains how viewers can access materials. At 04:24, a demonstration of how to obtain the study notes and shell scripts is shown. The production then walks through a range of system and process‑related commands, including knowledge retrieval with uname, hostname, lsb_release, and arch listings, uptime, top, htop, and ps utilities. By 01:09:14 the session covers process identification tools (pidof, pgrep), disk usage commands (df, du, free), and user account commands (who, w). File and directory management is illustrated with operators, navigation tools (pwd, ls, cd), creation commands (mkdir, rmdir, touch, cp, mv, rm), and file search utilities (find, locate). It then moves to link handling (ln), file content viewing (cat, less, more, head, tail), text searching (grep, wc, uniq, awk), and text editors (nano, vim). File permission and ownership changes are taught with chmod, chown, and chgroup, and default permissions are illustrated. User and group administration is explored with useradd, usermod, userdel, groupadd, groupmod, groupdel, including password changes with passwd. Disk and filesystem‑management topics cover listing block devices (lsblk, fdisk, parted), partitioning, filesystem checks (fsck), swap, and disk reviews. Networking is tackled with interface configuration (ifconfig, ip), connectivity checking (ping, traceroute), active connection inspection (netstat, ss), DNS lookups (nslookup, dig), and firewall configuration (ufw, iptables). The timestamps listed throughout the video provide a quick reference to each of these sections: 00:24 Intro, 04:24 How to Get the Notes & Shell Scripts, 06:50 Command Line Syllabus, 10:11 Getting Manuals For Each Command From the System, 12:49 uname, 19:09 hostname, 29:60 lsb_release, 32:19 /proc/version | arch | lsmod, 35:46 modinfo, 39:25 uptime, 41:57 top, 55:27 htop - quick intro, 58:43 ps, 01:09:14 pidof, 01:11:23 pgrep, 01:21:01 df, 01:35:17 du, 01:48:54 free, 01:55:22 who, 02:01:42 w, 02:06:15 Operators, 02:06:40 pwd and ls, 02:23:49 cd, 02:30:29 cd, 02:35:40 mkdir, 02:40:61 rmdir, 02:46:24 touch | cp | mv | rm, 02:57:21 find, 03:10:34 locate, 03:14:51 Hard Links vs Soft Links, 03:17:26 ln, 03:22:48 cat, 03:27:44 less | more, 03:32:51 head | tail, 03:41:60 grep, 03:47:48 sort | wc | uniq, 03:56:35 awk, 04:07:42 nano, 04:13:29 vim, 04:20:58 chmod (Change Mode), 04:39:36 Owners and Groups, 04:42:51 chown (Change Ownership), 04:52:23 chgroup (Change Group Ownership), 04:59:15 Overview of Default Permissions, 05:01:10 umask (User File Creation Mask), 05:12:54 Viewing File Permissions, 05:16:35 useradd (Add Users), 05:41:75 Getting a User’s Group Details, 05:44:48 usermod (Modify Users), 05:58:48 userdel (Delete Users), 06:01:08 passwd (Change passwords), 06:11:10 Getting Current User Information, 06:15:13 groupadd (Add Groups), 06:22:19 groupmod (Modify Groups), 06:31:21 groupdel (Delete Groups), 06:33:99 Disk & Filesystem Management, 06:36:15 lsblk (List Block Devices), 06:39:20 fdisk (Fixed Disk), 06:40:99 parted, 06:46:84 The Challenge of Creating Partitions In a Live Environment, 06:50:12 How to Create Partitions, 07:00:40 fsck (Filesystem Check), 07:04:52 swap partitions, 07:12:26 Partitions Review, 07:18:35 Networking, 07:20:08 ifconfig, 07:27:56 ip, 07:34:17 ping, 07:40:36 traceroute, 07:50:30 netstat, 07:59:30 ss, 08:06:24 nslookup, 08:11:31 dig, 08:17:36 ufw, 08:37:50 iptables.