Unlock the Power of Open Source: New Linux Certification is now on Swayam Plus.
Course Start Date: 2nd February 2026; Course End Date: 2nd April 2026.
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what is sudo?
When I switch user to duck, and then I execute the command "who", it does not show the duck, but is showing the administrative username. Why? But if I execute "whoami" command it shows the user duck.
du -s *.txt, this command gives the file size in which format?
what is du and df command do? If I write df command what output it will give? If I write du what output will it print?
what is superuser?
id -g gives one id, but id -G gives multiple id, why? What is group and what is group id?
What is the "filesystem" and "Mounted one" in the result of the command df -h ?
What is the role of adduser command and Sudo command in Linux Operating System?
It's not my question but it's suggestion to provide Linux Server Administration course based on certification .... TY diploma and Engineering students having special subject..
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Outline:Basics of System Administration Root login-su User management - UID, GID, useradd, usermod, userdel Discs – Du, df
Basics of System Administration Root login-su User management - UID, GID, useradd, usermod, userdel Discs – Du, df
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