Linux commands for day to day use

copy the text from ssh editor to local 

cntrl+insert for copy

shift +insert for paste

grep commands for daily use

 grep -B 3 -A 2 'Invalid user' /var/log/auth.log

https://www.loggly.com/ultimate-guide/troubleshooting-with-linux-logs/

https://www.loggly.com/ultimate-guide/troubleshooting-with-linux-logs/

grep -l phoenix *

refer the link https://phoenixnap.com/kb/grep-command-linux-unix-examples

scp command to transfer files

for more refer this link https://www.youtube.com/watch?v=fmMg6cyww14

1. search text in vi editor

1. Press ESC key.
2. Type /vivek.
3. Hit n to search forwards for the next occurrence of word named “vivek”. You can press N to search backwards.

Find Files linux commad

find / -name "*conf" 
find /home/exampleuser/ -name "*conf" 

2. How to unpack (ungzip, unarchive) a tar.gz file

For many systems, REBOL is distributed as a tar gz file. This is a common archive format. Here's how to unpack it...

For tar.gz

To unpack a tar.gz file, you can use the tar command from the shell. Here's an example:

tar -xzf rebol.tar.gz

The result will be a new directory containing the files.

(Also, on many systems, when you download the tar.gz from a web browser, an unpacker will open, and you can just use that.)

For just .gz (.gzip)

In some cases the file is just a gzip format, not tar. Then you can use:

gunzip rebol.gz

In order to execute it, you will need to add execute permissions to the file:

chmod +x rebol

for more refer below videos on detailed commands