The following list of main commands via terminal and its purposes, for linux beginners to have a north in their daily use of the system:
| Apt | package manager/applications for Debian and derivatives |
| apt-get | package/application manager for Debian and derivatives with few more options than apt |
| apt-mark | version "freeze" manager to not update an app by apt (options: hold and unhold) |
| aptitude | package manager/applications with better features for re-fixing dependencies for Debian and derivatives |
| Cat | view file content directly in the terminal |
| CD | directory access |
| Chmod | control of file/folder access permissions |
| Chown | file/folder property control |
| Cp | copy |
| Curl | performs http requisitions |
| DNF | package/application manager for RHEL and derivatives |
| DPKG | package/application manager with other features for Debian and derivatives |
| exit | exit, close, or terminate application |
| History | command history in the terminal |
| journalctl | view system events |
| Kill | kill a process by pid |
| Ls | listing |
| man | manual of an app |
| Mount | assemble unit |
| Mv | move |
| nano | publisher |
| passwd | user password exchange |
| Pkill | kill an app by name |
| ping | carries out data packets to verify connectivity between devices |
| Scp | file copy via ssh protocol |
| Snap | snap package manager |
| SSH | shell connection via network |
| sudo | run something like super user |
| systemctl | linux process manager |
| tar | Compactor |
| Uname | distro information |
| unite | decompresser of any file |
| Saw | publisher |
| Came | publisher |
| wget | file downloader |
| whereis | details of an app |
| Yum | package/application manager for RHEL and derivatives |
| Zip | Compactor |
All commands have add-ons for them to run, the idea of the list is just to create that mental trigger of knowing which of the commands to resort to. The list was built with the latest records of my history, plus Rhel's package managers.
It's not complete and it's not a guide, just a tip.
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