1 -Linux File Editor (vi)
2 -Difference between vi and vim Editors
3 -sed Command
4 -User Account Management (useradd, groupadd, usermod, userdel, groupdel)
5 -Switch Users and Sudo Access (su, sudo)
6 -Monitor Users (who, last, w, id)
7 -Talking to Users (users, wall, write)
8 -Linux Directory Service - Account Authentication
9 -Difference between Active Directory, LDAP, IDM, WinBIND, OpenLDAP etc
10 -System Utility Commands (date, uptime, hostname, uname, which, cal, bc)
11 -Processes and Jobs (systemctl, ps, kill, top, crontab, at)
12 -Additional cronjobs (hourly, daily, weekly, monthly)
13 -Process Management (bg, fg, nice)
14 -System Monitoring Commands (df, dmesg, iostat 1, netstat, free, top)
15 -System Logs Monitor (varlog)
16 -System Maintenance Commands (shutdown, init, reboot, halt)
17 -Changing System Hostname (hostnamectl)
18 -Finding System Information (uname, dmidecode)
19 -Finding System Architecture (arch)
20 -Terminal Control Keys
21 -Terminal Commands (clear, exit, script)
22 -Recover Root Password (single user mode)
23 -SOS Report
24 -Environment Variables
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